18996699 has 8 divisors (see below), whose sum is σ = 25367040. Its totient is φ = 12645416.

The previous prime is 18996683. The next prime is 18996709. The reversal of 18996699 is 99669981.

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 18996699 - 2⁴ = 18996683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18996619) 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, 2247 + ... + 6560.

It is an arithmetic number, because the mean of its divisors is an integer number (3170880).

Almost surely, 2^18996699 is an apocalyptic number.

18996699 is a deficient number, since it is larger than the sum of its proper divisors (6370341).

18996699 is an equidigital number, since it uses as much as digits as its factorization.

18996699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9529.

The product of its digits is 1889568, while the sum is 57.

The square root of 18996699 is about 4358.5202764241. The cubic root of 18996699 is about 266.8247106546.

The spelling of 18996699 in words is "eighteen million, nine hundred ninety-six thousand, six hundred ninety-nine".