573720091 has 8 divisors (see below), whose sum is σ = 655851744. Its totient is φ = 491631360.

The previous prime is 573720031. The next prime is 573720101. The reversal of 573720091 is 190027375.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 573720091 - 2²⁷ = 439502363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (573720001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26571 + ... + 43051.

It is an arithmetic number, because the mean of its divisors is an integer number (81981468).

Almost surely, 2^573720091 is an apocalyptic number.

573720091 is a deficient number, since it is larger than the sum of its proper divisors (82131653).

573720091 is a wasteful number, since it uses less digits than its factorization.

573720091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21461.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 573720091 is about 23952.4548011263. The cubic root of 573720091 is about 830.9342994266.

The spelling of 573720091 in words is "five hundred seventy-three million, seven hundred twenty thousand, ninety-one".