18098879 has 2 divisors, whose sum is σ = 18098880. Its totient is φ = 18098878.

The previous prime is 18098867. The next prime is 18098891. The reversal of 18098879 is 97889081.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (18098867) and next prime (18098891).

It is a cyclic number.

It is not a de Polignac number, because 18098879 - 2⁸ = 18098623 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 (18098819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9049439 + 9049440.

It is an arithmetic number, because the mean of its divisors is an integer number (9049440).

Almost surely, 2^18098879 is an apocalyptic number.

18098879 is a deficient number, since it is larger than the sum of its proper divisors (1).

18098879 is an equidigital number, since it uses as much as digits as its factorization.

18098879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 50.

The square root of 18098879 is about 4254.2777295329. The cubic root of 18098879 is about 262.5531453998.

The spelling of 18098879 in words is "eighteen million, ninety-eight thousand, eight hundred seventy-nine".