9869691 has 16 divisors (see below), whose sum is σ = 14789376. Its totient is φ = 5809056.

The previous prime is 9869681. The next prime is 9869693. The reversal of 9869691 is 1969689.

It is not a de Polignac number, because 9869691 - 2⁶ = 9869627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9869691.

It is not an unprimeable number, because it can be changed into a prime (9869693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4605 + ... + 6398.

It is an arithmetic number, because the mean of its divisors is an integer number (924336).

Almost surely, 2^9869691 is an apocalyptic number.

9869691 is a deficient number, since it is larger than the sum of its proper divisors (4919685).

9869691 is a wasteful number, since it uses less digits than its factorization.

9869691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11042.

The product of its digits is 209952, while the sum is 48.

The square root of 9869691 is about 3141.6064362043. The cubic root of 9869691 is about 214.5035670806.

The spelling of 9869691 in words is "nine million, eight hundred sixty-nine thousand, six hundred ninety-one".