30648937 has 8 divisors (see below), whose sum is σ = 33712992. Its totient is φ = 27861460.

The previous prime is 30648931. The next prime is 30648941. The reversal of 30648937 is 73984603.

It is a de Polignac number, because none of the positive numbers 2^k-30648937 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 30648937.

It is not an unprimeable number, because it can be changed into a prime (30648931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10183 + ... + 12844.

It is an arithmetic number, because the mean of its divisors is an integer number (4214124).

Almost surely, 2^30648937 is an apocalyptic number.

It is an amenable number.

30648937 is a deficient number, since it is larger than the sum of its proper divisors (3064055).

30648937 is an equidigital number, since it uses as much as digits as its factorization.

30648937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23060 (or 23038 counting only the distinct ones).

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

The square root of 30648937 is about 5536.1482097213. The cubic root of 30648937 is about 312.9477298419.

The spelling of 30648937 in words is "thirty million, six hundred forty-eight thousand, nine hundred thirty-seven".