18868411 has 2 divisors, whose sum is σ = 18868412. Its totient is φ = 18868410.

The previous prime is 18868393. The next prime is 18868433. The reversal of 18868411 is 11486881.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18868411 - 2⁵ = 18868379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18868471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9434205 + 9434206.

It is an arithmetic number, because the mean of its divisors is an integer number (9434206).

Almost surely, 2^18868411 is an apocalyptic number.

18868411 is a deficient number, since it is larger than the sum of its proper divisors (1).

18868411 is an equidigital number, since it uses as much as digits as its factorization.

18868411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 37.

The square root of 18868411 is about 4343.7784243674. The cubic root of 18868411 is about 266.2227156535. Note that the first 3 decimals are identical.

The spelling of 18868411 in words is "eighteen million, eight hundred sixty-eight thousand, four hundred eleven".