18800799 has 12 divisors (see below), whose sum is σ = 25621464. Its totient is φ = 12262864.

The previous prime is 18800797. The next prime is 18800801. The reversal of 18800799 is 99700881.

It is an interprime number because it is at equal distance from previous prime (18800797) and next prime (18800801).

It is not a de Polignac number, because 18800799 - 2¹ = 18800797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18800799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18800797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5209 + ... + 8045.

It is an arithmetic number, because the mean of its divisors is an integer number (2135122).

Almost surely, 2^18800799 is an apocalyptic number.

18800799 is a deficient number, since it is larger than the sum of its proper divisors (6820665).

18800799 is an equidigital number, since it uses as much as digits as its factorization.

18800799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934 (or 2887 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 18800799 is about 4335.9888145612. The cubic root of 18800799 is about 265.9043459184.

The spelling of 18800799 in words is "eighteen million, eight hundred thousand, seven hundred ninety-nine".