572431861 has 4 divisors (see below), whose sum is σ = 574608672. Its totient is φ = 570255052.

The previous prime is 572431819. The next prime is 572431877. The reversal of 572431861 is 168134275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 572431861 - 2⁷ = 572431733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 572431861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572431801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1088011 + ... + 1088536.

It is an arithmetic number, because the mean of its divisors is an integer number (143652168).

Almost surely, 2^572431861 is an apocalyptic number.

It is an amenable number.

572431861 is a deficient number, since it is larger than the sum of its proper divisors (2176811).

572431861 is a wasteful number, since it uses less digits than its factorization.

572431861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176810.

The product of its digits is 40320, while the sum is 37.

The square root of 572431861 is about 23925.5482904781. The cubic root of 572431861 is about 830.3119072566.

The spelling of 572431861 in words is "five hundred seventy-two million, four hundred thirty-one thousand, eight hundred sixty-one".