31874768 has 20 divisors (see below), whose sum is σ = 62155620. Its totient is φ = 15834624.

The previous prime is 31874767. The next prime is 31874771. The reversal of 31874768 is 86747813.

It can be written as a sum of positive squares in 2 ways, for example, as 6190144 + 25684624 = 2488^2 + 5068^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31874767) 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, 3833 + ... + 8856.

It is an arithmetic number, because the mean of its divisors is an integer number (3107781).

Almost surely, 2^31874768 is an apocalyptic number.

It is an amenable number.

31874768 is a deficient number, since it is larger than the sum of its proper divisors (30280852).

31874768 is a wasteful number, since it uses less digits than its factorization.

31874768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12854 (or 12848 counting only the distinct ones).

The product of its digits is 225792, while the sum is 44.

The square root of 31874768 is about 5645.7743490154. The cubic root of 31874768 is about 317.0655160190.

The spelling of 31874768 in words is "thirty-one million, eight hundred seventy-four thousand, seven hundred sixty-eight".