899631 has 12 divisors (see below), whose sum is σ = 1368120. Its totient is φ = 568080.

The previous prime is 899617. The next prime is 899659. The reversal of 899631 is 136998.

It is not a de Polignac number, because 899631 - 2¹⁰ = 898607 is a prime.

It is a super-2 number, since 2×899631² = 1618671872322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899611) 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 11 ways as a sum of consecutive naturals, for example, 2460 + ... + 2801.

It is an arithmetic number, because the mean of its divisors is an integer number (114010).

2⁸⁹⁹⁶³¹ is an apocalyptic number.

899631 is a deficient number, since it is larger than the sum of its proper divisors (468489).

899631 is a wasteful number, since it uses less digits than its factorization.

899631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5286 (or 5283 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 899631 is about 948.4887980361. The cubic root of 899631 is about 96.5357416352.

The spelling of 899631 in words is "eight hundred ninety-nine thousand, six hundred thirty-one".