9981693 has 12 divisors (see below), whose sum is σ = 14472640. Its totient is φ = 6629256.

The previous prime is 9981691. The next prime is 9981731. The reversal of 9981693 is 3961899.

It is not a de Polignac number, because 9981693 - 2¹ = 9981691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9981691) 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, 588 + ... + 4506.

Almost surely, 2^9981693 is an apocalyptic number.

It is an amenable number.

9981693 is a deficient number, since it is larger than the sum of its proper divisors (4490947).

9981693 is a wasteful number, since it uses less digits than its factorization.

9981693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4208 (or 4205 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 9981693 is about 3159.3817433162. The cubic root of 9981693 is about 215.3119179074.

The spelling of 9981693 in words is "nine million, nine hundred eighty-one thousand, six hundred ninety-three".