9931697 has 4 divisors (see below), whose sum is σ = 10051440. Its totient is φ = 9811956.

The previous prime is 9931639. The next prime is 9931709. The reversal of 9931697 is 7961399.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9931697 - 2¹⁴ = 9915313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9931627) 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, 59747 + ... + 59912.

It is an arithmetic number, because the mean of its divisors is an integer number (2512860).

Almost surely, 2^9931697 is an apocalyptic number.

It is an amenable number.

9931697 is a deficient number, since it is larger than the sum of its proper divisors (119743).

9931697 is a wasteful number, since it uses less digits than its factorization.

9931697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119742.

The product of its digits is 91854, while the sum is 44.

The square root of 9931697 is about 3151.4595031509. The cubic root of 9931697 is about 214.9518334502.

The spelling of 9931697 in words is "nine million, nine hundred thirty-one thousand, six hundred ninety-seven".