8636860220 has 24 divisors (see below), whose sum is σ = 18207990864. Its totient is φ = 3441299456.

The previous prime is 8636860213. The next prime is 8636860223. The reversal of 8636860220 is 220686368.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8636860223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835022 + ... + 845301.

It is an arithmetic number, because the mean of its divisors is an integer number (758666286).

Almost surely, 2^8636860220 is an apocalyptic number.

It is an amenable number.

8636860220 is an abundant number, since it is smaller than the sum of its proper divisors (9571130644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8636860220 is a wasteful number, since it uses less digits than its factorization.

8636860220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680589 (or 1680587 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 8636860220 is about 92934.7094470091. The cubic root of 8636860220 is about 2051.7225434765.

The spelling of 8636860220 in words is "eight billion, six hundred thirty-six million, eight hundred sixty thousand, two hundred twenty".