779655725 has 12 divisors (see below), whose sum is σ = 1008807456. Its totient is φ = 596605680.

The previous prime is 779655689. The next prime is 779655727. The reversal of 779655725 is 527556977.

It is not a de Polignac number, because 779655725 - 2⁸ = 779655469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (779655727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 677387 + ... + 678536.

It is an arithmetic number, because the mean of its divisors is an integer number (84067288).

Almost surely, 2^779655725 is an apocalyptic number.

It is an amenable number.

779655725 is a deficient number, since it is larger than the sum of its proper divisors (229151731).

779655725 is a wasteful number, since it uses less digits than its factorization.

779655725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355956 (or 1355951 counting only the distinct ones).

The product of its digits is 4630500, while the sum is 53.

The square root of 779655725 is about 27922.3158960714. The cubic root of 779655725 is about 920.3809563611.

The spelling of 779655725 in words is "seven hundred seventy-nine million, six hundred fifty-five thousand, seven hundred twenty-five".