9659631 has 8 divisors (see below), whose sum is σ = 13295104. Its totient is φ = 6231960.

The previous prime is 9659603. The next prime is 9659633. The reversal of 9659631 is 1369569.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9659631 - 2¹⁴ = 9643247 is a prime.

It is a super-2 number, since 2×9659631² = 186616942112322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9659631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9659633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51841 + ... + 52026.

It is an arithmetic number, because the mean of its divisors is an integer number (1661888).

Almost surely, 2^9659631 is an apocalyptic number.

9659631 is a deficient number, since it is larger than the sum of its proper divisors (3635473).

9659631 is a wasteful number, since it uses less digits than its factorization.

9659631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103901.

The product of its digits is 43740, while the sum is 39.

The square root of 9659631 is about 3107.9946911152. The cubic root of 9659631 is about 212.9708571735.

The spelling of 9659631 in words is "nine million, six hundred fifty-nine thousand, six hundred thirty-one".