779974064 has 20 divisors (see below), whose sum is σ = 1514579400. Its totient is φ = 389114880.

The previous prime is 779974057. The next prime is 779974067. The reversal of 779974064 is 460479977.

It is a junction number, because it is equal to n+sod(n) for n = 779973997 and 779974015.

It is not an unprimeable number, because it can be changed into a prime (779974067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47102 + ... + 61469.

It is an arithmetic number, because the mean of its divisors is an integer number (75728970).

Almost surely, 2^779974064 is an apocalyptic number.

It is an amenable number.

779974064 is a deficient number, since it is larger than the sum of its proper divisors (734605336).

779974064 is a wasteful number, since it uses less digits than its factorization.

779974064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109028 (or 109022 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 53.

The square root of 779974064 is about 27928.0157547936. The cubic root of 779974064 is about 920.5062053549.

The spelling of 779974064 in words is "seven hundred seventy-nine million, nine hundred seventy-four thousand, sixty-four".