18034979 has 4 divisors (see below), whose sum is σ = 18056976. Its totient is φ = 18012984.

The previous prime is 18034969. The next prime is 18034997. The reversal of 18034979 is 97943081.

It is a happy number.

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 18034979 - 2¹⁶ = 17969443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18034969) 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, 9719 + ... + 11424.

It is an arithmetic number, because the mean of its divisors is an integer number (4514244).

Almost surely, 2^18034979 is an apocalyptic number.

18034979 is a deficient number, since it is larger than the sum of its proper divisors (21997).

18034979 is an equidigital number, since it uses as much as digits as its factorization.

18034979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21996.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 18034979 is about 4246.7610010454. The cubic root of 18034979 is about 262.2437905256.

The spelling of 18034979 in words is "eighteen million, thirty-four thousand, nine hundred seventy-nine".