30965964 has 12 divisors (see below), whose sum is σ = 72253944. Its totient is φ = 10321984.

The previous prime is 30965951. The next prime is 30965969. The reversal of 30965964 is 46956903.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (30965969) 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, 1290237 + ... + 1290260.

It is an arithmetic number, because the mean of its divisors is an integer number (6021162).

Almost surely, 2^30965964 is an apocalyptic number.

It is an amenable number.

30965964 is an abundant number, since it is smaller than the sum of its proper divisors (41287980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30965964 is a wasteful number, since it uses less digits than its factorization.

30965964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580504 (or 2580502 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 30965964 is about 5564.7070003730. The cubic root of 30965964 is about 314.0230553615.

The spelling of 30965964 in words is "thirty million, nine hundred sixty-five thousand, nine hundred sixty-four".