18112679 has 4 divisors (see below), whose sum is σ = 19505976. Its totient is φ = 16719384.

The previous prime is 18112663. The next prime is 18112727. The reversal of 18112679 is 97621181.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18112679 - 2⁴ = 18112663 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 (18112609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696629 + ... + 696654.

It is an arithmetic number, because the mean of its divisors is an integer number (4876494).

Almost surely, 2^18112679 is an apocalyptic number.

18112679 is a deficient number, since it is larger than the sum of its proper divisors (1393297).

18112679 is a wasteful number, since it uses less digits than its factorization.

18112679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393296.

The product of its digits is 6048, while the sum is 35.

The square root of 18112679 is about 4255.8993174181. The cubic root of 18112679 is about 262.6198587934.

The spelling of 18112679 in words is "eighteen million, one hundred twelve thousand, six hundred seventy-nine".