9716391 has 12 divisors (see below), whose sum is σ = 14773720. Its totient is φ = 6136560.

The previous prime is 9716383. The next prime is 9716431. The reversal of 9716391 is 1936179.

It is not a de Polignac number, because 9716391 - 2³ = 9716383 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9716321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28240 + ... + 28581.

Almost surely, 2^9716391 is an apocalyptic number.

9716391 is a deficient number, since it is larger than the sum of its proper divisors (5057329).

9716391 is a wasteful number, since it uses less digits than its factorization.

9716391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56846 (or 56843 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 9716391 is about 3117.1126062432. The cubic root of 9716391 is about 213.3871817735.

The spelling of 9716391 in words is "nine million, seven hundred sixteen thousand, three hundred ninety-one".