770940870 has 32 divisors (see below), whose sum is σ = 2114581248. Its totient is φ = 176215008.

The previous prime is 770940857. The next prime is 770940923. The reversal of 770940870 is 78049077.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1835364 + ... + 1835783.

It is an arithmetic number, because the mean of its divisors is an integer number (66080664).

Almost surely, 2^770940870 is an apocalyptic number.

770940870 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

770940870 is an abundant number, since it is smaller than the sum of its proper divisors (1343640378).

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

770940870 is a wasteful number, since it uses less digits than its factorization.

770940870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671164.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 770940870 is about 27765.8219759473. The cubic root of 770940870 is about 916.9388134467.

The spelling of 770940870 in words is "seven hundred seventy million, nine hundred forty thousand, eight hundred seventy".