11413993 has 4 divisors (see below), whose sum is σ = 11428228. Its totient is φ = 11399760.

The previous prime is 11413991. The next prime is 11414009. The reversal of 11413993 is 39931411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39931411 = 13 ⋅3071647.

It can be written as a sum of positive squares in 2 ways, for example, as 994009 + 10419984 = 997^2 + 3228^2 .

It is a cyclic number.

It is not a de Polignac number, because 11413993 - 2¹ = 11413991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11413991) 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, 5838 + ... + 7543.

It is an arithmetic number, because the mean of its divisors is an integer number (2857057).

Almost surely, 2^11413993 is an apocalyptic number.

It is an amenable number.

11413993 is a deficient number, since it is larger than the sum of its proper divisors (14235).

11413993 is an equidigital number, since it uses as much as digits as its factorization.

11413993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14234.

The product of its digits is 2916, while the sum is 31.

The square root of 11413993 is about 3378.4601521995. The cubic root of 11413993 is about 225.1537582767.

The spelling of 11413993 in words is "eleven million, four hundred thirteen thousand, nine hundred ninety-three".