18026959 has 2 divisors, whose sum is σ = 18026960. Its totient is φ = 18026958.

The previous prime is 18026941. The next prime is 18027011. The reversal of 18026959 is 95962081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18026959 - 2⁵ = 18026927 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18026909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9013479 + 9013480.

It is an arithmetic number, because the mean of its divisors is an integer number (9013480).

Almost surely, 2^18026959 is an apocalyptic number.

18026959 is a deficient number, since it is larger than the sum of its proper divisors (1).

18026959 is an equidigital number, since it uses as much as digits as its factorization.

18026959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 18026959 is about 4245.8166470068. The cubic root of 18026959 is about 262.2049122430.

The spelling of 18026959 in words is "eighteen million, twenty-six thousand, nine hundred fifty-nine".