581972 has 18 divisors (see below), whose sum is σ = 1060878. Its totient is φ = 279328.

The previous prime is 581953. The next prime is 581981. The reversal of 581972 is 279185.

It can be written as a sum of positive squares in 3 ways, for example, as 217156 + 364816 = 466^2 + 604^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3278 + ... + 3450.

2⁵⁸¹⁹⁷² is an apocalyptic number.

It is an amenable number.

581972 is a deficient number, since it is larger than the sum of its proper divisors (478906).

581972 is a wasteful number, since it uses less digits than its factorization.

581972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 204 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 581972 is about 762.8708934020. The cubic root of 581972 is about 83.4899171494.

The spelling of 581972 in words is "five hundred eighty-one thousand, nine hundred seventy-two".