18364705 has 8 divisors (see below), whose sum is σ = 22285800. Its totient is φ = 14526336.

The previous prime is 18364693. The next prime is 18364711. The reversal of 18364705 is 50746381.

It can be written as a sum of positive squares in 4 ways, for example, as 665856 + 17698849 = 816^2 + 4207^2 .

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 18364705 - 2²³ = 9976097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20190 + ... + 21079.

It is an arithmetic number, because the mean of its divisors is an integer number (2785725).

Almost surely, 2^18364705 is an apocalyptic number.

It is an amenable number.

18364705 is a deficient number, since it is larger than the sum of its proper divisors (3921095).

18364705 is an equidigital number, since it uses as much as digits as its factorization.

18364705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41363.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 18364705 is about 4285.4060484393. The cubic root of 18364705 is about 263.8323133543.

The spelling of 18364705 in words is "eighteen million, three hundred sixty-four thousand, seven hundred five".