31272934 has 24 divisors (see below), whose sum is σ = 58930704. Its totient is φ = 12183600.

The previous prime is 31272889. The next prime is 31272937. The reversal of 31272934 is 43927213.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 31272896 and 31272905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31272937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7537 + ... + 10924.

It is an arithmetic number, because the mean of its divisors is an integer number (2455446).

Almost surely, 2^31272934 is an apocalyptic number.

31272934 is a deficient number, since it is larger than the sum of its proper divisors (27657770).

31272934 is a wasteful number, since it uses less digits than its factorization.

31272934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18492 (or 18481 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 31272934 is about 5592.2208468550. The cubic root of 31272934 is about 315.0572970435.

The spelling of 31272934 in words is "thirty-one million, two hundred seventy-two thousand, nine hundred thirty-four".