779791104 has 144 divisors (see below), whose sum is σ = 2330895840. Its totient is φ = 257126400.

The previous prime is 779791097. The next prime is 779791127. The reversal of 779791104 is 401197977.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 779791104.

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, 697554 + ... + 698670.

Almost surely, 2^779791104 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 779791104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1165447920).

779791104 is an abundant number, since it is smaller than the sum of its proper divisors (1551104736).

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

779791104 is a wasteful number, since it uses less digits than its factorization.

779791104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1223 counting only the distinct ones).

The product of its (nonzero) digits is 111132, while the sum is 45.

The square root of 779791104 is about 27924.7399987896. The cubic root of 779791104 is about 920.4342247625.

The spelling of 779791104 in words is "seven hundred seventy-nine million, seven hundred ninety-one thousand, one hundred four".