30864856 has 16 divisors (see below), whose sum is σ = 63132840. Its totient is φ = 14029440.

The previous prime is 30864839. The next prime is 30864881. The reversal of 30864856 is 65846803.

It is a congruent number.

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, 175281 + ... + 175456.

Almost surely, 2^30864856 is an apocalyptic number.

It is an amenable number.

30864856 is an abundant number, since it is smaller than the sum of its proper divisors (32267984).

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

30864856 is a wasteful number, since it uses less digits than its factorization.

30864856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350754 (or 350750 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 30864856 is about 5555.6148174617. The cubic root of 30864856 is about 313.6809069933.

The spelling of 30864856 in words is "thirty million, eight hundred sixty-four thousand, eight hundred fifty-six".