779705955 has 48 divisors (see below), whose sum is σ = 1594404864. Its totient is φ = 344934720.

The previous prime is 779705947. The next prime is 779705981. The reversal of 779705955 is 559507977.

It is not a de Polignac number, because 779705955 - 2³ = 779705947 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30159 + ... + 49688.

It is an arithmetic number, because the mean of its divisors is an integer number (33216768).

Almost surely, 2^779705955 is an apocalyptic number.

779705955 is an abundant number, since it is smaller than the sum of its proper divisors (814698909).

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

779705955 is a wasteful number, since it uses less digits than its factorization.

779705955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79896 (or 79893 counting only the distinct ones).

The product of its (nonzero) digits is 3472875, while the sum is 54.

The square root of 779705955 is about 27923.2153413607. The cubic root of 779705955 is about 920.4007213852.

The spelling of 779705955 in words is "seven hundred seventy-nine million, seven hundred five thousand, nine hundred fifty-five".