18074923 has 2 divisors, whose sum is σ = 18074924. Its totient is φ = 18074922.

The previous prime is 18074899. The next prime is 18074929. The reversal of 18074923 is 32947081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18074923 - 2⁹ = 18074411 is a prime.

It is not a weakly prime, because it can be changed into another prime (18074929) 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 as a sum of consecutive naturals, namely, 9037461 + 9037462.

It is an arithmetic number, because the mean of its divisors is an integer number (9037462).

Almost surely, 2^18074923 is an apocalyptic number.

18074923 is a deficient number, since it is larger than the sum of its proper divisors (1).

18074923 is an equidigital number, since it uses as much as digits as its factorization.

18074923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 18074923 is about 4251.4612781960. The cubic root of 18074923 is about 262.4372542396.

The spelling of 18074923 in words is "eighteen million, seventy-four thousand, nine hundred twenty-three".