18074879 has 2 divisors, whose sum is σ = 18074880. Its totient is φ = 18074878.

The previous prime is 18074869. The next prime is 18074897. The reversal of 18074879 is 97847081.

Together with next prime (18074897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18074879 - 2⁴ = 18074863 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18074839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9037439 + 9037440.

It is an arithmetic number, because the mean of its divisors is an integer number (9037440).

Almost surely, 2^18074879 is an apocalyptic number.

18074879 is a deficient number, since it is larger than the sum of its proper divisors (1).

18074879 is an equidigital number, since it uses as much as digits as its factorization.

18074879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 18074879 is about 4251.4561035015. The cubic root of 18074879 is about 262.4370412880.

The spelling of 18074879 in words is "eighteen million, seventy-four thousand, eight hundred seventy-nine".