725828 has 6 divisors (see below), whose sum is σ = 1270206. Its totient is φ = 362912.

The previous prime is 725827. The next prime is 725861. The reversal of 725828 is 828527.

It can be written as a sum of positive squares in only one way, i.e., 719104 + 6724 = 848^2 + 82^2 .

It is a junction number, because it is equal to n+sod(n) for n = 725794 and 725803.

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 as a sum of consecutive naturals, namely, 90725 + ... + 90732.

It is an arithmetic number, because the mean of its divisors is an integer number (211701).

2⁷²⁵⁸²⁸ is an apocalyptic number.

It is an amenable number.

725828 is a deficient number, since it is larger than the sum of its proper divisors (544378).

725828 is a wasteful number, since it uses less digits than its factorization.

725828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181461 (or 181459 counting only the distinct ones).

The product of its digits is 8960, while the sum is 32.

The square root of 725828 is about 851.9553978936. The cubic root of 725828 is about 89.8692752351.

The spelling of 725828 in words is "seven hundred twenty-five thousand, eight hundred twenty-eight".