8636660 has 12 divisors (see below), whose sum is σ = 18137028. Its totient is φ = 3454656.

The previous prime is 8636647. The next prime is 8636671. The reversal of 8636660 is 666368.

It can be written as a sum of positive squares in 2 ways, for example, as 1008016 + 7628644 = 1004^2 + 2762^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8636660.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 215897 + ... + 215936.

It is an arithmetic number, because the mean of its divisors is an integer number (1511419).

Almost surely, 2^8636660 is an apocalyptic number.

It is an amenable number.

8636660 is an abundant number, since it is smaller than the sum of its proper divisors (9500368).

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

8636660 is a wasteful number, since it uses less digits than its factorization.

8636660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431842 (or 431840 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 8636660 is about 2938.8194908841. The cubic root of 8636660 is about 205.1706688986.

The spelling of 8636660 in words is "eight million, six hundred thirty-six thousand, six hundred sixty".