18327934 has 4 divisors (see below), whose sum is σ = 27491904. Its totient is φ = 9163966.

The previous prime is 18327919. The next prime is 18327961. The reversal of 18327934 is 43972381.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43972381 = 29 ⋅1516289.

It is a junction number, because it is equal to n+sod(n) for n = 18327893 and 18327902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4581982 + ... + 4581985.

It is an arithmetic number, because the mean of its divisors is an integer number (6872976).

Almost surely, 2^18327934 is an apocalyptic number.

18327934 is a deficient number, since it is larger than the sum of its proper divisors (9163970).

18327934 is an equidigital number, since it uses as much as digits as its factorization.

18327934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9163969.

The product of its digits is 36288, while the sum is 37.

The square root of 18327934 is about 4281.1136401642. The cubic root of 18327934 is about 263.6561083256.

The spelling of 18327934 in words is "eighteen million, three hundred twenty-seven thousand, nine hundred thirty-four".