31066930 has 16 divisors (see below), whose sum is σ = 57285144. Its totient is φ = 12123520.

The previous prime is 31066927. The next prime is 31066949. The reversal of 31066930 is 3966013.

It can be written as a sum of positive squares in 4 ways, for example, as 6395841 + 24671089 = 2529^2 + 4967^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37477 + ... + 38296.

Almost surely, 2^31066930 is an apocalyptic number.

31066930 is a deficient number, since it is larger than the sum of its proper divisors (26218214).

31066930 is a wasteful number, since it uses less digits than its factorization.

31066930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75821.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 31066930 is about 5573.7716135486. The cubic root of 31066930 is about 314.3639808028.

The spelling of 31066930 in words is "thirty-one million, sixty-six thousand, nine hundred thirty".