725356928 has 32 divisors (see below), whose sum is σ = 1447337160. Its totient is φ = 362103808.

The previous prime is 725356927. The next prime is 725356937. The reversal of 725356928 is 829653527.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×725356928² = 1052285345995194368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725356927) 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 3 ways as a sum of consecutive naturals, for example, 83276 + ... + 91572.

Almost surely, 2^725356928 is an apocalyptic number.

It is an amenable number.

725356928 is a deficient number, since it is larger than the sum of its proper divisors (721980232).

725356928 is an equidigital number, since it uses as much as digits as its factorization.

725356928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8994 (or 8982 counting only the distinct ones).

The product of its digits is 907200, while the sum is 47.

The square root of 725356928 is about 26932.4512066763. The cubic root of 725356928 is about 898.4982891030.

The spelling of 725356928 in words is "seven hundred twenty-five million, three hundred fifty-six thousand, nine hundred twenty-eight".