725398670 has 24 divisors (see below), whose sum is σ = 1387048104. Its totient is φ = 273090176.

The previous prime is 725398627. The next prime is 725398717. The reversal of 725398670 is 76893527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122612 + ... + 128391.

It is an arithmetic number, because the mean of its divisors is an integer number (57793671).

Almost surely, 2^725398670 is an apocalyptic number.

725398670 is a deficient number, since it is larger than the sum of its proper divisors (661649434).

725398670 is a wasteful number, since it uses less digits than its factorization.

725398670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251044 (or 251027 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 725398670 is about 26933.2261342751. The cubic root of 725398670 is about 898.5155240186.

The spelling of 725398670 in words is "seven hundred twenty-five million, three hundred ninety-eight thousand, six hundred seventy".