20086845 has 16 divisors (see below), whose sum is σ = 32685120. Its totient is φ = 10530944.

The previous prime is 20086831. The next prime is 20086849. The reversal of 20086845 is 54868002.

It is a cyclic number.

It is not a de Polignac number, because 20086845 - 2¹⁴ = 20070461 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20086849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10464 + ... + 12233.

It is an arithmetic number, because the mean of its divisors is an integer number (2042820).

Almost surely, 2^20086845 is an apocalyptic number.

It is an amenable number.

20086845 is a deficient number, since it is larger than the sum of its proper divisors (12598275).

20086845 is a wasteful number, since it uses less digits than its factorization.

20086845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22764.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 20086845 is about 4481.8350036564. The cubic root of 20086845 is about 271.8340836827.

The spelling of 20086845 in words is "twenty million, eighty-six thousand, eight hundred forty-five".