31679361 has 12 divisors (see below), whose sum is σ = 52296192. Its totient is φ = 18102456.

The previous prime is 31679359. The next prime is 31679371. The reversal of 31679361 is 16397613.

It is not a de Polignac number, because 31679361 - 2¹ = 31679359 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31679321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251361 + ... + 251486.

It is an arithmetic number, because the mean of its divisors is an integer number (4358016).

Almost surely, 2^31679361 is an apocalyptic number.

It is an amenable number.

31679361 is a deficient number, since it is larger than the sum of its proper divisors (20616831).

31679361 is a wasteful number, since it uses less digits than its factorization.

31679361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502860 (or 502857 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 31679361 is about 5628.4421468111. The cubic root of 31679361 is about 316.4162682900.

The spelling of 31679361 in words is "thirty-one million, six hundred seventy-nine thousand, three hundred sixty-one".