725823 has 24 divisors (see below), whose sum is σ = 1231776. Its totient is φ = 403200.

The previous prime is 725807. The next prime is 725827. The reversal of 725823 is 328527.

It is not a de Polignac number, because 725823 - 2⁴ = 725807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2443 + ... + 2723.

It is an arithmetic number, because the mean of its divisors is an integer number (51324).

2⁷²⁵⁸²³ is an apocalyptic number.

725823 is a deficient number, since it is larger than the sum of its proper divisors (505953).

725823 is a wasteful number, since it uses less digits than its factorization.

725823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 332 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 725823 is about 851.9524634626. The cubic root of 725823 is about 89.8690688743.

The spelling of 725823 in words is "seven hundred twenty-five thousand, eight hundred twenty-three".