18864341 has 2 divisors, whose sum is σ = 18864342. Its totient is φ = 18864340.

The previous prime is 18864281. The next prime is 18864361. The reversal of 18864341 is 14346881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18447025 + 417316 = 4295^2 + 646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18864341 is a prime.

It is a super-2 number, since 2×18864341² = 711726722728562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18864361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9432170 + 9432171.

It is an arithmetic number, because the mean of its divisors is an integer number (9432171).

Almost surely, 2^18864341 is an apocalyptic number.

It is an amenable number.

18864341 is a deficient number, since it is larger than the sum of its proper divisors (1).

18864341 is an equidigital number, since it uses as much as digits as its factorization.

18864341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 35.

The square root of 18864341 is about 4343.3099129581. The cubic root of 18864341 is about 266.2035724699.

The spelling of 18864341 in words is "eighteen million, eight hundred sixty-four thousand, three hundred forty-one".