30961604 has 12 divisors (see below), whose sum is σ = 54547500. Its totient is φ = 15376608.

The previous prime is 30961597. The next prime is 30961613. The reversal of 30961604 is 40616903.

It can be written as a sum of positive squares in 2 ways, for example, as 5053504 + 25908100 = 2248^2 + 5090^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25379 + ... + 26570.

It is an arithmetic number, because the mean of its divisors is an integer number (4545625).

Almost surely, 2^30961604 is an apocalyptic number.

It is an amenable number.

30961604 is a deficient number, since it is larger than the sum of its proper divisors (23585896).

30961604 is a wasteful number, since it uses less digits than its factorization.

30961604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52102 (or 52100 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 30961604 is about 5564.3152319041. The cubic root of 30961604 is about 314.0083165471.

The spelling of 30961604 in words is "thirty million, nine hundred sixty-one thousand, six hundred four".