11183993 has 4 divisors (see below), whose sum is σ = 11192208. Its totient is φ = 11175780.

The previous prime is 11183987. The next prime is 11184023. The reversal of 11183993 is 39938111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39938111 = 547 ⋅73013.

It is a cyclic number.

It is not a de Polignac number, because 11183993 - 2⁸ = 11183737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11173993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523 + ... + 4968.

It is an arithmetic number, because the mean of its divisors is an integer number (2798052).

Almost surely, 2^11183993 is an apocalyptic number.

It is an amenable number.

11183993 is a deficient number, since it is larger than the sum of its proper divisors (8215).

11183993 is an equidigital number, since it uses as much as digits as its factorization.

11183993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8214.

The product of its digits is 5832, while the sum is 35.

The square root of 11183993 is about 3344.2477479995. The cubic root of 11183993 is about 223.6311491813.

The spelling of 11183993 in words is "eleven million, one hundred eighty-three thousand, nine hundred ninety-three".