18226079 has 2 divisors, whose sum is σ = 18226080. Its totient is φ = 18226078.

The previous prime is 18226067. The next prime is 18226093. The reversal of 18226079 is 97062281.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18226079 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 (18226279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9113039 + 9113040.

It is an arithmetic number, because the mean of its divisors is an integer number (9113040).

Almost surely, 2^18226079 is an apocalyptic number.

18226079 is a deficient number, since it is larger than the sum of its proper divisors (1).

18226079 is an equidigital number, since it uses as much as digits as its factorization.

18226079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 18226079 is about 4269.2012133419. The cubic root of 18226079 is about 263.1667897772.

The spelling of 18226079 in words is "eighteen million, two hundred twenty-six thousand, seventy-nine".