18014687 has 2 divisors, whose sum is σ = 18014688. Its totient is φ = 18014686.

The previous prime is 18014653. The next prime is 18014693. The reversal of 18014687 is 78641081.

It is a strong prime.

It is an emirp because it is prime and its reverse (78641081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18014687 - 2²² = 13820383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18014287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9007343 + 9007344.

It is an arithmetic number, because the mean of its divisors is an integer number (9007344).

Almost surely, 2^18014687 is an apocalyptic number.

18014687 is a deficient number, since it is larger than the sum of its proper divisors (1).

18014687 is an equidigital number, since it uses as much as digits as its factorization.

18014687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 18014687 is about 4244.3712137371. The cubic root of 18014687 is about 262.1453993557.

The spelling of 18014687 in words is "eighteen million, fourteen thousand, six hundred eighty-seven".