9993691 has 8 divisors (see below), whose sum is σ = 10227024. Its totient is φ = 9762720.

The previous prime is 9993679. The next prime is 9993701. The reversal of 9993691 is 1963999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9993691 - 2¹³ = 9985499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9993611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10080 + ... + 11026.

It is an arithmetic number, because the mean of its divisors is an integer number (1278378).

Almost surely, 2^9993691 is an apocalyptic number.

9993691 is a deficient number, since it is larger than the sum of its proper divisors (233333).

9993691 is a wasteful number, since it uses less digits than its factorization.

9993691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181.

The product of its digits is 118098, while the sum is 46.

The square root of 9993691 is about 3161.2799622938. The cubic root of 9993691 is about 215.3981517101.

The spelling of 9993691 in words is "nine million, nine hundred ninety-three thousand, six hundred ninety-one".