8685090 has 64 divisors (see below), whose sum is σ = 24393600. Its totient is φ = 2192832.

The previous prime is 8685077. The next prime is 8685107. The reversal of 8685090 is 905868.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4284 + ... + 5976.

It is an arithmetic number, because the mean of its divisors is an integer number (381150).

Almost surely, 2^8685090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8685090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12196800).

8685090 is an abundant number, since it is smaller than the sum of its proper divisors (15708510).

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

8685090 is a wasteful number, since it uses less digits than its factorization.

8685090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728 (or 1722 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 8685090 is about 2947.0476752167. The cubic root of 8685090 is about 205.5534519169.

The spelling of 8685090 in words is "eight million, six hundred eighty-five thousand, ninety".