9992631 has 16 divisors (see below), whose sum is σ = 14722560. Its totient is φ = 5977920.

The previous prime is 9992629. The next prime is 9992639. The reversal of 9992631 is 1362999.

It is a happy number.

It is not a de Polignac number, because 9992631 - 2¹ = 9992629 is a prime.

It is a super-2 number, since 2×9992631² = 199705348604322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9992631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9992639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691 + ... + 4523.

It is an arithmetic number, because the mean of its divisors is an integer number (920160).

Almost surely, 2^9992631 is an apocalyptic number.

9992631 is a deficient number, since it is larger than the sum of its proper divisors (4729929).

9992631 is a wasteful number, since it uses less digits than its factorization.

9992631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926.

The product of its digits is 26244, while the sum is 39.

The square root of 9992631 is about 3161.1123042372. The cubic root of 9992631 is about 215.3905359015.

The spelling of 9992631 in words is "nine million, nine hundred ninety-two thousand, six hundred thirty-one".