725608 has 16 divisors (see below), whose sum is σ = 1465380. Its totient is φ = 334848.

The previous prime is 725603. The next prime is 725639. The reversal of 725608 is 806527.

It can be written as a sum of positive squares in 2 ways, for example, as 636804 + 88804 = 798^2 + 298^2 .

It is not an unprimeable number, because it can be changed into a prime (725603) 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, 3385 + ... + 3592.

2⁷²⁵⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

725608 is an abundant number, since it is smaller than the sum of its proper divisors (739772).

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

725608 is a wasteful number, since it uses less digits than its factorization.

725608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6996 (or 6992 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 725608 is about 851.8262733680. The cubic root of 725608 is about 89.8601944619.

The spelling of 725608 in words is "seven hundred twenty-five thousand, six hundred eight".