18314623 has 2 divisors, whose sum is σ = 18314624. Its totient is φ = 18314622.

The previous prime is 18314599. The next prime is 18314657. The reversal of 18314623 is 32641381.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18314623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18314591 and 18314600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18314323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9157311 + 9157312.

It is an arithmetic number, because the mean of its divisors is an integer number (9157312).

Almost surely, 2^18314623 is an apocalyptic number.

18314623 is a deficient number, since it is larger than the sum of its proper divisors (1).

18314623 is an equidigital number, since it uses as much as digits as its factorization.

18314623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 18314623 is about 4279.5587389356. The cubic root of 18314623 is about 263.5922644971.

The spelling of 18314623 in words is "eighteen million, three hundred fourteen thousand, six hundred twenty-three".