20059843 has 8 divisors (see below), whose sum is σ = 20424960. Its totient is φ = 19697160.

The previous prime is 20059817. The next prime is 20059849. The reversal of 20059843 is 34895002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20059843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20059849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25096 + ... + 25882.

It is an arithmetic number, because the mean of its divisors is an integer number (2553120).

Almost surely, 2^20059843 is an apocalyptic number.

20059843 is a deficient number, since it is larger than the sum of its proper divisors (365117).

20059843 is an equidigital number, since it uses as much as digits as its factorization.

20059843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 20059843 is about 4478.8216084144. The cubic root of 20059843 is about 271.7122235734.

It can be divided in two parts, 20059 and 843, that added together give a palindrome (20902).

The spelling of 20059843 in words is "twenty million, fifty-nine thousand, eight hundred forty-three".