18614879 has 4 divisors (see below), whose sum is σ = 18629160. Its totient is φ = 18600600.

The previous prime is 18614873. The next prime is 18614887. The reversal of 18614879 is 97841681.

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 18614879 - 2²⁴ = 1837663 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 (18614873) 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, 4964 + ... + 7865.

It is an arithmetic number, because the mean of its divisors is an integer number (4657290).

Almost surely, 2^18614879 is an apocalyptic number.

18614879 is a deficient number, since it is larger than the sum of its proper divisors (14281).

18614879 is a wasteful number, since it uses less digits than its factorization.

18614879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14280.

The product of its digits is 96768, while the sum is 44.

The square root of 18614879 is about 4314.4963784896. The cubic root of 18614879 is about 265.0249365403.

The spelling of 18614879 in words is "eighteen million, six hundred fourteen thousand, eight hundred seventy-nine".