9656631 has 8 divisors (see below), whose sum is σ = 14306160. Its totient is φ = 6437736.

The previous prime is 9656627. The next prime is 9656651. The reversal of 9656631 is 1366569.

9656631 is a `hidden beast` number, since 96 + 566 + 3 + 1 = 666.

It is not a de Polignac number, because 9656631 - 2² = 9656627 is a prime.

It is a super-2 number, since 2×9656631² = 186501044540322, which contains 22 as substring.

9656631 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9656611) 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 7 ways as a sum of consecutive naturals, for example, 178800 + ... + 178853.

It is an arithmetic number, because the mean of its divisors is an integer number (1788270).

Almost surely, 2^9656631 is an apocalyptic number.

9656631 is a deficient number, since it is larger than the sum of its proper divisors (4649529).

9656631 is a wasteful number, since it uses less digits than its factorization.

9656631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357662 (or 357656 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 9656631 is about 3107.5120273299. The cubic root of 9656631 is about 212.9488073759.

The spelling of 9656631 in words is "nine million, six hundred fifty-six thousand, six hundred thirty-one".