779000000 has 196 divisors, whose sum is σ = 2083567080. Its totient is φ = 288000000.

The previous prime is 778999999. The next prime is 779000029. The reversal of 779000000 is 977.

It is a self number, because there is not a number n which added to its sum of digits gives 779000000.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 18999980 + ... + 19000020.

Almost surely, 2^779000000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 779000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1041783540).

779000000 is an abundant number, since it is smaller than the sum of its proper divisors (1304567080).

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

779000000 is an frugal number, since it uses more digits than its factorization.

779000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 441, while the sum is 23.

The square root of 779000000 is about 27910.5714739057. The cubic root of 779000000 is about 920.1228569389.

Adding to 779000000 its reverse (977), we get a palindrome (779000977).

The spelling of 779000000 in words is "seven hundred seventy-nine million", and thus it is an aban number.