31314988 has 6 divisors (see below), whose sum is σ = 54801236. Its totient is φ = 15657492.

The previous prime is 31314979. The next prime is 31314989. The reversal of 31314988 is 88941313.

It is not an unprimeable number, because it can be changed into a prime (31314989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3914370 + ... + 3914377.

Almost surely, 2^31314988 is an apocalyptic number.

It is an amenable number.

31314988 is a deficient number, since it is larger than the sum of its proper divisors (23486248).

31314988 is a wasteful number, since it uses less digits than its factorization.

31314988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7828751 (or 7828749 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 31314988 is about 5595.9796282689. The cubic root of 31314988 is about 315.1984572876.

The spelling of 31314988 in words is "thirty-one million, three hundred fourteen thousand, nine hundred eighty-eight".