30864513 has 16 divisors (see below), whose sum is σ = 42336000. Its totient is φ = 19989120.

The previous prime is 30864511. The next prime is 30864521. The reversal of 30864513 is 31546803.

It is not a de Polignac number, because 30864513 - 2¹ = 30864511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30864511) 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 15 ways as a sum of consecutive naturals, for example, 42568 + ... + 43286.

It is an arithmetic number, because the mean of its divisors is an integer number (2646000).

Almost surely, 2^30864513 is an apocalyptic number.

It is an amenable number.

30864513 is a deficient number, since it is larger than the sum of its proper divisors (11471487).

30864513 is a wasteful number, since it uses less digits than its factorization.

30864513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 30864513 is about 5555.5839477052. The cubic root of 30864513 is about 313.6797450142.

The spelling of 30864513 in words is "thirty million, eight hundred sixty-four thousand, five hundred thirteen".