72825724 has 12 divisors (see below), whose sum is σ = 127517544. Its totient is φ = 36392144.

The previous prime is 72825721. The next prime is 72825769. The reversal of 72825724 is 42752827.

It is a super-2 number, since 2×72825724² = 10607172152248352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72825721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4914 + ... + 13030.

It is an arithmetic number, because the mean of its divisors is an integer number (10626462).

Almost surely, 2^72825724 is an apocalyptic number.

It is an amenable number.

72825724 is a deficient number, since it is larger than the sum of its proper divisors (54691820).

72825724 is a wasteful number, since it uses less digits than its factorization.

72825724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10364 (or 10362 counting only the distinct ones).

The product of its digits is 62720, while the sum is 37.

The square root of 72825724 is about 8533.7989195903. The cubic root of 72825724 is about 417.6010708247.

The spelling of 72825724 in words is "seventy-two million, eight hundred twenty-five thousand, seven hundred twenty-four".