779879568 has 120 divisors (see below), whose sum is σ = 2201668608. Its totient is φ = 237758976.

The previous prime is 779879563. The next prime is 779879579. The reversal of 779879568 is 865978977.

It is a junction number, because it is equal to n+sod(n) for n = 779879499 and 779879508.

It is not an unprimeable number, because it can be changed into a prime (779879563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1029846 + ... + 1030602.

Almost surely, 2^779879568 is an apocalyptic number.

779879568 is a gapful number since it is divisible by the number (78) 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 779879568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1100834304).

779879568 is an abundant number, since it is smaller than the sum of its proper divisors (1421789040).

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

779879568 is a wasteful number, since it uses less digits than its factorization.

779879568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921 (or 902 counting only the distinct ones).

The product of its digits is 53343360, while the sum is 66.

The square root of 779879568 is about 27926.3239256441. The cubic root of 779879568 is about 920.4690299020.

The spelling of 779879568 in words is "seven hundred seventy-nine million, eight hundred seventy-nine thousand, five hundred sixty-eight".