30893864 has 16 divisors (see below), whose sum is σ = 57985620. Its totient is φ = 15431040.

The previous prime is 30893851. The next prime is 30893881. The reversal of 30893864 is 46839803.

It can be written as a sum of positive squares in 2 ways, for example, as 30891364 + 2500 = 5558^2 + 50^2 .

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, 12404 + ... + 14684.

Almost surely, 2^30893864 is an apocalyptic number.

It is an amenable number.

30893864 is a deficient number, since it is larger than the sum of its proper divisors (27091756).

30893864 is a wasteful number, since it uses less digits than its factorization.

30893864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980 (or 3976 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 30893864 is about 5558.2248964935. The cubic root of 30893864 is about 313.7791460889.

The spelling of 30893864 in words is "thirty million, eight hundred ninety-three thousand, eight hundred sixty-four".