770000000 has 256 divisors, whose sum is σ = 2390618880. Its totient is φ = 240000000.

The previous prime is 769999963. The next prime is 770000009. The reversal of 770000000 is 77.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 770000000.

It is not an unprimeable number, because it can be changed into a prime (770000009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69999995 + ... + 70000005.

It is an arithmetic number, because the mean of its divisors is an integer number (9338355).

Almost surely, 2^770000000 is an apocalyptic number.

770000000 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 770000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1195309440).

770000000 is an abundant number, since it is smaller than the sum of its proper divisors (1620618880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

770000000 is an frugal number, since it uses more digits than its factorization.

770000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 25 counting only the distinct ones).

The product of its (nonzero) digits is 49, while the sum is 14.

The square root of 770000000 is about 27748.8738510232. The cubic root of 770000000 is about 916.5656454330.

Adding to 770000000 its reverse (77), we get a palindrome (770000077).

770000000 divided by its reverse (77) gives a 7-th power (10000000 = 10⁷).

It can be divided in two parts, 7 and 70000000, that added together give a palindrome (70000007).

The spelling of 770000000 in words is "seven hundred seventy million", and thus it is an aban number.