18364873 has 8 divisors (see below), whose sum is σ = 18621216. Its totient is φ = 18110400.

The previous prime is 18364831. The next prime is 18364891. The reversal of 18364873 is 37846381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18364873 - 2¹⁷ = 18233801 is a prime.

It is a super-2 number, since 2×18364873² = 674537120612258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18365873) 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 7 ways as a sum of consecutive naturals, for example, 37158 + ... + 37648.

It is an arithmetic number, because the mean of its divisors is an integer number (2327652).

Almost surely, 2^18364873 is an apocalyptic number.

It is an amenable number.

18364873 is a deficient number, since it is larger than the sum of its proper divisors (256343).

18364873 is a wasteful number, since it uses less digits than its factorization.

18364873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935.

The product of its digits is 96768, while the sum is 40.

The square root of 18364873 is about 4285.4256498042. The cubic root of 18364873 is about 263.8331178629.

It can be divided in two parts, 183 and 64873, that added together give a palindrome (65056).

The spelling of 18364873 in words is "eighteen million, three hundred sixty-four thousand, eight hundred seventy-three".