30864937 has 4 divisors (see below), whose sum is σ = 31108096. Its totient is φ = 30621780.

The previous prime is 30864901. The next prime is 30864941. The reversal of 30864937 is 73946803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30864937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30864937.

It is not an unprimeable number, because it can be changed into a prime (30864997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121389 + ... + 121642.

It is an arithmetic number, because the mean of its divisors is an integer number (7777024).

Almost surely, 2^30864937 is an apocalyptic number.

It is an amenable number.

30864937 is a deficient number, since it is larger than the sum of its proper divisors (243159).

30864937 is a wasteful number, since it uses less digits than its factorization.

30864937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243158.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 30864937 is about 5555.6221073792. The cubic root of 30864937 is about 313.6811813952.

It can be divided in two parts, 3086493 and 7, that multiplied together give a triangular number (21605451 = T₆₅₇₃).

The spelling of 30864937 in words is "thirty million, eight hundred sixty-four thousand, nine hundred thirty-seven".