20023799 has 8 divisors (see below), whose sum is σ = 21010560. Its totient is φ = 19058400.

The previous prime is 20023763. The next prime is 20023813. The reversal of 20023799 is 99732002.

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 20023799 - 2²⁰ = 18975223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023699) 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, 3404 + ... + 7185.

It is an arithmetic number, because the mean of its divisors is an integer number (2626320).

Almost surely, 2^20023799 is an apocalyptic number.

20023799 is a deficient number, since it is larger than the sum of its proper divisors (986761).

20023799 is a wasteful number, since it uses less digits than its factorization.

20023799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10681.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 20023799 is about 4474.7959730026. The cubic root of 20023799 is about 271.5493863562.

The spelling of 20023799 in words is "twenty million, twenty-three thousand, seven hundred ninety-nine".