31066964 has 6 divisors (see below), whose sum is σ = 54367194. Its totient is φ = 15533480.

The previous prime is 31066961. The next prime is 31066967. The reversal of 31066964 is 46966013.

It is an interprime number because it is at equal distance from previous prime (31066961) and next prime (31066967).

It can be written as a sum of positive squares in only one way, i.e., 21715600 + 9351364 = 4660^2 + 3058^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31066961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3883367 + ... + 3883374.

It is an arithmetic number, because the mean of its divisors is an integer number (9061199).

Almost surely, 2^31066964 is an apocalyptic number.

It is an amenable number.

31066964 is a deficient number, since it is larger than the sum of its proper divisors (23300230).

31066964 is a wasteful number, since it uses less digits than its factorization.

31066964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7766745 (or 7766743 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 31066964 is about 5573.7746635471. The cubic root of 31066964 is about 314.3640954840.

The spelling of 31066964 in words is "thirty-one million, sixty-six thousand, nine hundred sixty-four".