9085631 has 4 divisors (see below), whose sum is σ = 9257112. Its totient is φ = 8914152.

The previous prime is 9085627. The next prime is 9085649. The reversal of 9085631 is 1365809.

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 9085631 - 2² = 9085627 is a prime.

It is a super-2 number, since 2×9085631² = 165097381336322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9085651) 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 3 ways as a sum of consecutive naturals, for example, 85661 + ... + 85766.

It is an arithmetic number, because the mean of its divisors is an integer number (2314278).

Almost surely, 2^9085631 is an apocalyptic number.

9085631 is a deficient number, since it is larger than the sum of its proper divisors (171481).

9085631 is a wasteful number, since it uses less digits than its factorization.

9085631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171480.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 9085631 is about 3014.2380463394. The cubic root of 9085631 is about 208.6660034729. Note that the first 3 decimals are identical.

The spelling of 9085631 in words is "nine million, eighty-five thousand, six hundred thirty-one".