18092979 has 12 divisors (see below), whose sum is σ = 26690976. Its totient is φ = 11805072.

The previous prime is 18092957. The next prime is 18092993. The reversal of 18092979 is 97929081.

It is not a de Polignac number, because 18092979 - 2¹⁷ = 17961907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18092909) 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 11 ways as a sum of consecutive naturals, for example, 20964 + ... + 21809.

It is an arithmetic number, because the mean of its divisors is an integer number (2224248).

Almost surely, 2^18092979 is an apocalyptic number.

18092979 is a deficient number, since it is larger than the sum of its proper divisors (8597997).

18092979 is a wasteful number, since it uses less digits than its factorization.

18092979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42826 (or 42823 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 18092979 is about 4253.5842533092. The cubic root of 18092979 is about 262.5246126582.

The spelling of 18092979 in words is "eighteen million, ninety-two thousand, nine hundred seventy-nine".