779975960 has 16 divisors (see below), whose sum is σ = 1754946000. Its totient is φ = 311990368.

The previous prime is 779975941. The next prime is 779975981. The reversal of 779975960 is 69579977.

It is a self number, because there is not a number n which added to its sum of digits gives 779975960.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9749660 + ... + 9749739.

It is an arithmetic number, because the mean of its divisors is an integer number (109684125).

Almost surely, 2^779975960 is an apocalyptic number.

It is an amenable number.

779975960 is an abundant number, since it is smaller than the sum of its proper divisors (974970040).

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

779975960 is a wasteful number, since it uses less digits than its factorization.

779975960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19499410 (or 19499406 counting only the distinct ones).

The product of its (nonzero) digits is 7501410, while the sum is 59.

The square root of 779975960 is about 27928.0496991824. The cubic root of 779975960 is about 920.5069512252.

The spelling of 779975960 in words is "seven hundred seventy-nine million, nine hundred seventy-five thousand, nine hundred sixty".