18313673 has 8 divisors (see below), whose sum is σ = 21325248. Its totient is φ = 15400944.

The previous prime is 18313661. The next prime is 18313693. The reversal of 18313673 is 37631381.

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 18313673 - 2¹⁶ = 18248137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18313693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24311 + ... + 25052.

It is an arithmetic number, because the mean of its divisors is an integer number (2665656).

Almost surely, 2^18313673 is an apocalyptic number.

It is an amenable number.

18313673 is a deficient number, since it is larger than the sum of its proper divisors (3011575).

18313673 is an equidigital number, since it uses as much as digits as its factorization.

18313673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49423.

The product of its digits is 9072, while the sum is 32.

The square root of 18313673 is about 4279.4477447446. The cubic root of 18313673 is about 263.5877068097.

The spelling of 18313673 in words is "eighteen million, three hundred thirteen thousand, six hundred seventy-three".