18214967 has 2 divisors, whose sum is σ = 18214968. Its totient is φ = 18214966.

The previous prime is 18214961. The next prime is 18214969. The reversal of 18214967 is 76941281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18214967 - 2²² = 14020663 is a prime.

It is a super-2 number, since 2×18214967² = 663570045622178, which contains 22 as substring.

Together with 18214969, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18214967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18214961) 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, 9107483 + 9107484.

It is an arithmetic number, because the mean of its divisors is an integer number (9107484).

Almost surely, 2^18214967 is an apocalyptic number.

18214967 is a deficient number, since it is larger than the sum of its proper divisors (1).

18214967 is an equidigital number, since it uses as much as digits as its factorization.

18214967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 38.

The square root of 18214967 is about 4267.8996005061. The cubic root of 18214967 is about 263.1132967602.

The spelling of 18214967 in words is "eighteen million, two hundred fourteen thousand, nine hundred sixty-seven".