18047079 has 6 divisors (see below), whose sum is σ = 26068016. Its totient is φ = 12031380.

The previous prime is 18047069. The next prime is 18047087. The reversal of 18047079 is 97074081.

18047079 is a `hidden beast` number, since 180 + 470 + 7 + 9 = 666.

It is not a de Polignac number, because 18047079 - 2⁴ = 18047063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18047039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1002607 + ... + 1002624.

Almost surely, 2^18047079 is an apocalyptic number.

18047079 is a deficient number, since it is larger than the sum of its proper divisors (8020937).

18047079 is a wasteful number, since it uses less digits than its factorization.

18047079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005237 (or 2005234 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 18047079 is about 4248.1853773111. The cubic root of 18047079 is about 262.3024254796.

The spelling of 18047079 in words is "eighteen million, forty-seven thousand, seventy-nine".