576720491 has 4 divisors (see below), whose sum is σ = 580539984. Its totient is φ = 572901000.

The previous prime is 576720467. The next prime is 576720493. The reversal of 576720491 is 194027675.

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 576720491 - 2¹⁰ = 576719467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (576720493) 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, 1909520 + ... + 1909821.

It is an arithmetic number, because the mean of its divisors is an integer number (145134996).

Almost surely, 2^576720491 is an apocalyptic number.

576720491 is a deficient number, since it is larger than the sum of its proper divisors (3819493).

576720491 is a wasteful number, since it uses less digits than its factorization.

576720491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819492.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 576720491 is about 24015.0055382046. The cubic root of 576720491 is about 832.3803017280.

The spelling of 576720491 in words is "five hundred seventy-six million, seven hundred twenty thousand, four hundred ninety-one".