9690631 has 4 divisors (see below), whose sum is σ = 10003264. Its totient is φ = 9378000.

The previous prime is 9690623. The next prime is 9690641. The reversal of 9690631 is 1360969.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9690631 - 2³ = 9690623 is a prime.

It is a super-2 number, since 2×9690631² = 187816658356322, which contains 22 as substring.

It is a Duffinian number.

9690631 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9690641) 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 3 ways as a sum of consecutive naturals, for example, 156270 + ... + 156331.

It is an arithmetic number, because the mean of its divisors is an integer number (2500816).

Almost surely, 2^9690631 is an apocalyptic number.

9690631 is a deficient number, since it is larger than the sum of its proper divisors (312633).

9690631 is a wasteful number, since it uses less digits than its factorization.

9690631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312632.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 9690631 is about 3112.9778348071. The cubic root of 9690631 is about 213.1984382127.

The spelling of 9690631 in words is "nine million, six hundred ninety thousand, six hundred thirty-one".