725994 has 24 divisors (see below), whose sum is σ = 1604772. Its totient is φ = 237120.

The previous prime is 725993. The next prime is 725999. The reversal of 725994 is 499527.

It can be written as a sum of positive squares in 2 ways, for example, as 680625 + 45369 = 825^2 + 213^2 .

It is not an unprimeable number, because it can be changed into a prime (725993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 574 + ... + 1334.

2⁷²⁵⁹⁹⁴ is an apocalyptic number.

725994 is an abundant number, since it is smaller than the sum of its proper divisors (878778).

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

725994 is a wasteful number, since it uses less digits than its factorization.

725994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 819 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 725994 is about 852.0528152644. The cubic root of 725994 is about 89.8761258768.

The spelling of 725994 in words is "seven hundred twenty-five thousand, nine hundred ninety-four".