576432661 has 4 divisors (see below), whose sum is σ = 658780192. Its totient is φ = 494085132.

The previous prime is 576432629. The next prime is 576432667. The reversal of 576432661 is 166234675.

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 576432661 - 2⁵ = 576432629 is a prime.

It is a super-2 number, since 2×576432661² = 664549225335081842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (576432667) 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, 41173755 + ... + 41173768.

It is an arithmetic number, because the mean of its divisors is an integer number (164695048).

Almost surely, 2^576432661 is an apocalyptic number.

It is an amenable number.

576432661 is a deficient number, since it is larger than the sum of its proper divisors (82347531).

576432661 is an equidigital number, since it uses as much as digits as its factorization.

576432661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82347530.

The product of its digits is 181440, while the sum is 40.

The square root of 576432661 is about 24009.0120788007. The cubic root of 576432661 is about 832.2418037356.

The spelling of 576432661 in words is "five hundred seventy-six million, four hundred thirty-two thousand, six hundred sixty-one".