725598 has 24 divisors (see below), whose sum is σ = 1631448. Its totient is φ = 241704.

The previous prime is 725597. The next prime is 725603. The reversal of 725598 is 895527.

725598 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725598.

It is not an unprimeable number, because it can be changed into a prime (725597) 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, 261 + ... + 1232.

It is an arithmetic number, because the mean of its divisors is an integer number (67977).

2⁷²⁵⁵⁹⁸ is an apocalyptic number.

725598 is an abundant number, since it is smaller than the sum of its proper divisors (905850).

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

725598 is a wasteful number, since it uses less digits than its factorization.

725598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 1498 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 725598 is about 851.8204036063. The cubic root of 725598 is about 89.8597816559.

The spelling of 725598 in words is "seven hundred twenty-five thousand, five hundred ninety-eight".