30986868 has 24 divisors (see below), whose sum is σ = 78876000. Its totient is φ = 9389920.

The previous prime is 30986867. The next prime is 30986873. The reversal of 30986868 is 86868903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30986867) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 117243 + ... + 117506.

It is an arithmetic number, because the mean of its divisors is an integer number (3286500).

Almost surely, 2^30986868 is an apocalyptic number.

It is an amenable number.

30986868 is an abundant number, since it is smaller than the sum of its proper divisors (47889132).

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

30986868 is a wasteful number, since it uses less digits than its factorization.

30986868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234767 (or 234765 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 30986868 is about 5566.5849495000. The cubic root of 30986868 is about 314.0937013282.

The spelling of 30986868 in words is "thirty million, nine hundred eighty-six thousand, eight hundred sixty-eight".