572731 has 4 divisors (see below), whose sum is σ = 574432. Its totient is φ = 571032.

The previous prime is 572711. The next prime is 572749. The reversal of 572731 is 137275.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 572731 - 2⁵ = 572699 is a prime.

It is a super-2 number, since 2×572731² = 656041596722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 572696 and 572705.

It is not an unprimeable number, because it can be changed into a prime (572711) 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, 156 + ... + 1081.

It is an arithmetic number, because the mean of its divisors is an integer number (143608).

2⁵⁷²⁷³¹ is an apocalyptic number.

572731 is a deficient number, since it is larger than the sum of its proper divisors (1701).

572731 is a wasteful number, since it uses less digits than its factorization.

572731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700.

The product of its digits is 1470, while the sum is 25.

The square root of 572731 is about 756.7899312227. The cubic root of 572731 is about 83.0456515688.

The spelling of 572731 in words is "five hundred seventy-two thousand, seven hundred thirty-one".