779385990 has 32 divisors (see below), whose sum is σ = 1871341056. Its totient is φ = 207745760.

The previous prime is 779385989. The next prime is 779386001. The reversal of 779385990 is 99583977.

It is a self number, because there is not a number n which added to its sum of digits gives 779385990.

It is a congruent number.

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, 92035 + ... + 100145.

It is an arithmetic number, because the mean of its divisors is an integer number (58479408).

Almost surely, 2^779385990 is an apocalyptic number.

779385990 is an abundant number, since it is smaller than the sum of its proper divisors (1091955066).

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

779385990 is a wasteful number, since it uses less digits than its factorization.

779385990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11324.

The product of its (nonzero) digits is 4286520, while the sum is 57.

The square root of 779385990 is about 27917.4853810296. The cubic root of 779385990 is about 920.2748036989.

The spelling of 779385990 in words is "seven hundred seventy-nine million, three hundred eighty-five thousand, nine hundred ninety".