725988 has 24 divisors (see below), whose sum is σ = 1713600. Its totient is φ = 239200.

The previous prime is 725983. The next prime is 725993. The reversal of 725988 is 889527.

725988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (725983) and next prime (725993).

It is a super-2 number, since 2×725988² = 1054117152288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (725981) by changing a digit.

725988 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913 + ... + 1511.

It is an arithmetic number, because the mean of its divisors is an integer number (71400).

2⁷²⁵⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

725988 is an abundant number, since it is smaller than the sum of its proper divisors (987612).

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

725988 is a wasteful number, since it uses less digits than its factorization.

725988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707 (or 705 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 725988 is about 852.0492943486. The cubic root of 725988 is about 89.8758782814.

The spelling of 725988 in words is "seven hundred twenty-five thousand, nine hundred eighty-eight".