18059963 has 2 divisors, whose sum is σ = 18059964. Its totient is φ = 18059962.

The previous prime is 18059929. The next prime is 18059983. The reversal of 18059963 is 36995081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18059963 - 2⁸ = 18059707 is a prime.

It is a super-2 number, since 2×18059963² = 652324527122738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18059963.

It is not a weakly prime, because it can be changed into another prime (18059903) 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, 9029981 + 9029982.

It is an arithmetic number, because the mean of its divisors is an integer number (9029982).

Almost surely, 2^18059963 is an apocalyptic number.

18059963 is a deficient number, since it is larger than the sum of its proper divisors (1).

18059963 is an equidigital number, since it uses as much as digits as its factorization.

18059963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 18059963 is about 4249.7015189305. The cubic root of 18059963 is about 262.3648307871.

The spelling of 18059963 in words is "eighteen million, fifty-nine thousand, nine hundred sixty-three".