11690993 has 4 divisors (see below), whose sum is σ = 11731188. Its totient is φ = 11650800.

The previous prime is 11690989. The next prime is 11691011. The reversal of 11690993 is 39909611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5678689 + 6012304 = 2383^2 + 2452^2 .

It is a cyclic number.

It is not a de Polignac number, because 11690993 - 2² = 11690989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11690933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19658 + ... + 20243.

It is an arithmetic number, because the mean of its divisors is an integer number (2932797).

Almost surely, 2^11690993 is an apocalyptic number.

It is an amenable number.

11690993 is a deficient number, since it is larger than the sum of its proper divisors (40195).

11690993 is an equidigital number, since it uses as much as digits as its factorization.

11690993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40194.

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 11690993 is about 3419.2094115453. The cubic root of 11690993 is about 226.9605978691.

The spelling of 11690993 in words is "eleven million, six hundred ninety thousand, nine hundred ninety-three".