725028 has 24 divisors (see below), whose sum is σ = 1747200. Its totient is φ = 233760.

The previous prime is 725009. The next prime is 725041. The reversal of 725028 is 820527.

It is a junction number, because it is equal to n+sod(n) for n = 724989 and 725007.

It is an unprimeable number.

725028 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, 603 + ... + 1346.

It is an arithmetic number, because the mean of its divisors is an integer number (72800).

2⁷²⁵⁰²⁸ is an apocalyptic number.

It is an amenable number.

725028 is an abundant number, since it is smaller than the sum of its proper divisors (1022172).

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

725028 is a wasteful number, since it uses less digits than its factorization.

725028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987 (or 1985 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 725028 is about 851.4857603037. The cubic root of 725028 is about 89.8362454400.

The spelling of 725028 in words is "seven hundred twenty-five thousand, twenty-eight".