572972728 has 8 divisors (see below), whose sum is σ = 1074323880. Its totient is φ = 286486360.

The previous prime is 572972717. The next prime is 572972737. The reversal of 572972728 is 827279275.

It is a happy number.

572972728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35810788 + ... + 35810803.

It is an arithmetic number, because the mean of its divisors is an integer number (134290485).

Almost surely, 2^572972728 is an apocalyptic number.

It is an amenable number.

572972728 is a deficient number, since it is larger than the sum of its proper divisors (501351152).

572972728 is a wasteful number, since it uses less digits than its factorization.

572972728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71621597 (or 71621593 counting only the distinct ones).

The product of its digits is 987840, while the sum is 49.

The square root of 572972728 is about 23936.8487483211. The cubic root of 572972728 is about 830.5733339716.

It can be divided in two parts, 57297 and 2728, that added together give a square (60025 = 245²).

The spelling of 572972728 in words is "five hundred seventy-two million, nine hundred seventy-two thousand, seven hundred twenty-eight".