30969864 has 96 divisors (see below), whose sum is σ = 88452000. Its totient is φ = 10150272.

The previous prime is 30969857. The next prime is 30969877. The reversal of 30969864 is 46896903.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172927 + ... + 173105.

It is an arithmetic number, because the mean of its divisors is an integer number (921375).

Almost surely, 2^30969864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30969864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44226000).

30969864 is an abundant number, since it is smaller than the sum of its proper divisors (57482136).

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

30969864 is a wasteful number, since it uses less digits than its factorization.

30969864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 30969864 is about 5565.0574121028. The cubic root of 30969864 is about 314.0362379911.

The spelling of 30969864 in words is "thirty million, nine hundred sixty-nine thousand, eight hundred sixty-four".