18028411 has 2 divisors, whose sum is σ = 18028412. Its totient is φ = 18028410.

The previous prime is 18028379. The next prime is 18028429. The reversal of 18028411 is 11482081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18028411 - 2⁵ = 18028379 is a prime.

It is not a weakly prime, because it can be changed into another prime (18028471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9014205 + 9014206.

It is an arithmetic number, because the mean of its divisors is an integer number (9014206).

Almost surely, 2^18028411 is an apocalyptic number.

18028411 is a deficient number, since it is larger than the sum of its proper divisors (1).

18028411 is an equidigital number, since it uses as much as digits as its factorization.

18028411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 18028411 is about 4245.9876354036. The cubic root of 18028411 is about 262.2119519090.

The spelling of 18028411 in words is "eighteen million, twenty-eight thousand, four hundred eleven".