30976628 has 12 divisors (see below), whose sum is σ = 54818820. Its totient is φ = 15314112.

The previous prime is 30976613. The next prime is 30976637. The reversal of 30976628 is 82667903.

It can be written as a sum of positive squares in 2 ways, for example, as 7279204 + 23697424 = 2698^2 + 4868^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43151 + ... + 43862.

It is an arithmetic number, because the mean of its divisors is an integer number (4568235).

Almost surely, 2^30976628 is an apocalyptic number.

It is an amenable number.

30976628 is a deficient number, since it is larger than the sum of its proper divisors (23842192).

30976628 is a wasteful number, since it uses less digits than its factorization.

30976628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87106 (or 87104 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 30976628 is about 5565.6650995187. The cubic root of 30976628 is about 314.0590987792.

The spelling of 30976628 in words is "thirty million, nine hundred seventy-six thousand, six hundred twenty-eight".