9688131 has 12 divisors (see below), whose sum is σ = 14050608. Its totient is φ = 6432624.

The previous prime is 9688127. The next prime is 9688139. The reversal of 9688131 is 1318869.

It is not a de Polignac number, because 9688131 - 2² = 9688127 is a prime.

It is a super-2 number, since 2×9688131² = 187719764546322, which contains 22 as substring.

9688131 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9688139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 321 + ... + 4413.

It is an arithmetic number, because the mean of its divisors is an integer number (1170884).

Almost surely, 2^9688131 is an apocalyptic number.

9688131 is a deficient number, since it is larger than the sum of its proper divisors (4362477).

9688131 is a wasteful number, since it uses less digits than its factorization.

9688131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4362 (or 4359 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 9688131 is about 3112.5762641259. The cubic root of 9688131 is about 213.1801029108.

The spelling of 9688131 in words is "nine million, six hundred eighty-eight thousand, one hundred thirty-one".