573972731 has 4 divisors (see below), whose sum is σ = 574024200. Its totient is φ = 573921264.

The previous prime is 573972713. The next prime is 573972739. The reversal of 573972731 is 137279375.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 573972731 - 2¹⁰ = 573971707 is a prime.

It is a super-2 number, since 2×573972731² = 658889391863196722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (573972739) 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, 1226 + ... + 33903.

It is an arithmetic number, because the mean of its divisors is an integer number (143506050).

Almost surely, 2^573972731 is an apocalyptic number.

573972731 is a deficient number, since it is larger than the sum of its proper divisors (51469).

573972731 is a wasteful number, since it uses less digits than its factorization.

573972731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51468.

The product of its digits is 277830, while the sum is 44.

The square root of 573972731 is about 23957.7280016282. The cubic root of 573972731 is about 831.0562499725.

The spelling of 573972731 in words is "five hundred seventy-three million, nine hundred seventy-two thousand, seven hundred thirty-one".