20082859 has 4 divisors (see below), whose sum is σ = 20227480. Its totient is φ = 19938240.

The previous prime is 20082851. The next prime is 20082863. The reversal of 20082859 is 95828002.

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 20082859 - 2³ = 20082851 is a prime.

It is a super-2 number, since 2×20082859² = 806642451227762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20082851) 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, 72102 + ... + 72379.

It is an arithmetic number, because the mean of its divisors is an integer number (5056870).

Almost surely, 2^20082859 is an apocalyptic number.

20082859 is a deficient number, since it is larger than the sum of its proper divisors (144621).

20082859 is a wasteful number, since it uses less digits than its factorization.

20082859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144620.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 20082859 is about 4481.3902976643. The cubic root of 20082859 is about 271.8161017259.

The spelling of 20082859 in words is "twenty million, eighty-two thousand, eight hundred fifty-nine".