779608699 has 4 divisors (see below), whose sum is σ = 779677920. Its totient is φ = 779539480.

The previous prime is 779608681. The next prime is 779608771. The reversal of 779608699 is 996806977.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 779608699 - 2¹⁵ = 779575931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (779608649) 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, 13372 + ... + 41689.

It is an arithmetic number, because the mean of its divisors is an integer number (194919480).

Almost surely, 2^779608699 is an apocalyptic number.

779608699 is a deficient number, since it is larger than the sum of its proper divisors (69221).

779608699 is a wasteful number, since it uses less digits than its factorization.

779608699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69220.

The product of its (nonzero) digits is 10287648, while the sum is 61.

The square root of 779608699 is about 27921.4737970616. The cubic root of 779608699 is about 920.3624513109.

The spelling of 779608699 in words is "seven hundred seventy-nine million, six hundred eight thousand, six hundred ninety-nine".