725816828 has 12 divisors (see below), whose sum is σ = 1385650392. Its totient is φ = 329916720.

The previous prime is 725816813. The next prime is 725816849. The reversal of 725816828 is 828618527.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8247875 + ... + 8247962.

It is an arithmetic number, because the mean of its divisors is an integer number (115470866).

Almost surely, 2^725816828 is an apocalyptic number.

It is an amenable number.

725816828 is a deficient number, since it is larger than the sum of its proper divisors (659833564).

725816828 is a wasteful number, since it uses less digits than its factorization.

725816828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16495852 (or 16495850 counting only the distinct ones).

The product of its digits is 430080, while the sum is 47.

The square root of 725816828 is about 26940.9878809223. The cubic root of 725816828 is about 898.6881414118.

The spelling of 725816828 in words is "seven hundred twenty-five million, eight hundred sixteen thousand, eight hundred twenty-eight".