11697993 has 8 divisors (see below), whose sum is σ = 17330400. Its totient is φ = 7798644.

The previous prime is 11697979. The next prime is 11698009. The reversal of 11697993 is 39979611.

It is not a de Polignac number, because 11697993 - 2⁶ = 11697929 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11697953) 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, 216603 + ... + 216656.

It is an arithmetic number, because the mean of its divisors is an integer number (2166300).

Almost surely, 2^11697993 is an apocalyptic number.

It is an amenable number.

11697993 is a deficient number, since it is larger than the sum of its proper divisors (5632407).

11697993 is an equidigital number, since it uses as much as digits as its factorization.

11697993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433268 (or 433262 counting only the distinct ones).

The product of its digits is 91854, while the sum is 45.

The square root of 11697993 is about 3420.2328868076. The cubic root of 11697993 is about 227.0058865002.

The spelling of 11697993 in words is "eleven million, six hundred ninety-seven thousand, nine hundred ninety-three".