31272593 has 4 divisors (see below), whose sum is σ = 34115568. Its totient is φ = 28429620.

The previous prime is 31272557. The next prime is 31272599. The reversal of 31272593 is 39527213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31272593 - 2⁸ = 31272337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31272599) 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, 1421471 + ... + 1421492.

It is an arithmetic number, because the mean of its divisors is an integer number (8528892).

Almost surely, 2^31272593 is an apocalyptic number.

It is an amenable number.

31272593 is a deficient number, since it is larger than the sum of its proper divisors (2842975).

31272593 is a wasteful number, since it uses less digits than its factorization.

31272593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842974.

The product of its digits is 11340, while the sum is 32.

The square root of 31272593 is about 5592.1903579903. The cubic root of 31272593 is about 315.0561519113.

The spelling of 31272593 in words is "thirty-one million, two hundred seventy-two thousand, five hundred ninety-three".