20223799 has 4 divisors (see below), whose sum is σ = 20265480. Its totient is φ = 20182120.

The previous prime is 20223787. The next prime is 20223839. The reversal of 20223799 is 99732202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20223799 - 2⁵ = 20223767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20223499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20104 + ... + 21085.

It is an arithmetic number, because the mean of its divisors is an integer number (5066370).

Almost surely, 2^20223799 is an apocalyptic number.

20223799 is a deficient number, since it is larger than the sum of its proper divisors (41681).

20223799 is an equidigital number, since it uses as much as digits as its factorization.

20223799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41680.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 20223799 is about 4497.0878354775. The cubic root of 20223799 is about 272.4504817016.

The spelling of 20223799 in words is "twenty million, two hundred twenty-three thousand, seven hundred ninety-nine".