472958581 has 4 divisors (see below), whose sum is σ = 500779692. Its totient is φ = 445137472.

The previous prime is 472958569. The next prime is 472958587. The reversal of 472958581 is 185859274.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 170720356 + 302238225 = 13066^2 + 17385^2 .

It is a cyclic number.

It is not a de Polignac number, because 472958581 - 2²⁵ = 439404149 is a prime.

It is a super-2 number, since 2×472958581² = 447379638683067122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472958587) 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, 13910530 + ... + 13910563.

It is an arithmetic number, because the mean of its divisors is an integer number (125194923).

Almost surely, 2^472958581 is an apocalyptic number.

It is an amenable number.

472958581 is a deficient number, since it is larger than the sum of its proper divisors (27821111).

472958581 is a wasteful number, since it uses less digits than its factorization.

472958581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27821110.

The product of its digits is 806400, while the sum is 49.

The square root of 472958581 is about 21747.6109262604. The cubic root of 472958581 is about 779.1260104320.

The spelling of 472958581 in words is "four hundred seventy-two million, nine hundred fifty-eight thousand, five hundred eighty-one".