18868073 has 8 divisors (see below), whose sum is σ = 22501248. Its totient is φ = 15469344.

The previous prime is 18868063. The next prime is 18868081. The reversal of 18868073 is 37086881.

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 18868073 - 2¹⁰ = 18867049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18868073.

It is not an unprimeable number, because it can be changed into a prime (18868043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58436 + ... + 58757.

It is an arithmetic number, because the mean of its divisors is an integer number (2812656).

Almost surely, 2^18868073 is an apocalyptic number.

It is an amenable number.

18868073 is a deficient number, since it is larger than the sum of its proper divisors (3633175).

18868073 is a wasteful number, since it uses less digits than its factorization.

18868073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117223.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 18868073 is about 4343.7395179730. The cubic root of 18868073 is about 266.2211259805.

The spelling of 18868073 in words is "eighteen million, eight hundred sixty-eight thousand, seventy-three".