18472367 has 2 divisors, whose sum is σ = 18472368. Its totient is φ = 18472366.

The previous prime is 18472291. The next prime is 18472393. The reversal of 18472367 is 76327481.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18472367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18472367.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18472667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9236183 + 9236184.

It is an arithmetic number, because the mean of its divisors is an integer number (9236184).

Almost surely, 2^18472367 is an apocalyptic number.

18472367 is a deficient number, since it is larger than the sum of its proper divisors (1).

18472367 is an equidigital number, since it uses as much as digits as its factorization.

18472367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 38.

The square root of 18472367 is about 4297.9491621005. The cubic root of 18472367 is about 264.3468762547.

The spelling of 18472367 in words is "eighteen million, four hundred seventy-two thousand, three hundred sixty-seven".