813735925 has 6 divisors (see below), whose sum is σ = 1009032578. Its totient is φ = 650988720.

The previous prime is 813735919. The next prime is 813735941. The reversal of 813735925 is 529537318.

813735925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 3249 + 813732676 = 57^2 + 28526^2 .

It is not a de Polignac number, because 813735925 - 2³ = 813735917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16274694 + ... + 16274743.

Almost surely, 2^813735925 is an apocalyptic number.

It is an amenable number.

813735925 is a deficient number, since it is larger than the sum of its proper divisors (195296653).

813735925 is a wasteful number, since it uses less digits than its factorization.

813735925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32549447 (or 32549442 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The square root of 813735925 is about 28526.0569479906. The cubic root of 813735925 is about 933.6006883602.

The spelling of 813735925 in words is "eight hundred thirteen million, seven hundred thirty-five thousand, nine hundred twenty-five".