30944923 has 2 divisors, whose sum is σ = 30944924. Its totient is φ = 30944922.

The previous prime is 30944917. The next prime is 30944989. The reversal of 30944923 is 32944903.

It is a weak prime.

It is an emirp because it is prime and its reverse (32944903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30944923 - 2⁵ = 30944891 is a prime.

It is not a weakly prime, because it can be changed into another prime (30944623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15472461 + 15472462.

It is an arithmetic number, because the mean of its divisors is an integer number (15472462).

Almost surely, 2^30944923 is an apocalyptic number.

30944923 is a deficient number, since it is larger than the sum of its proper divisors (1).

30944923 is an equidigital number, since it uses as much as digits as its factorization.

30944923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 30944923 is about 5562.8161033779. The cubic root of 30944923 is about 313.9519142832.

The spelling of 30944923 in words is "thirty million, nine hundred forty-four thousand, nine hundred twenty-three".