11644393 has 4 divisors (see below), whose sum is σ = 11667780. Its totient is φ = 11621008.

The previous prime is 11644379. The next prime is 11644433. The reversal of 11644393 is 39344611.

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 9909904 + 1734489 = 3148^2 + 1317^2 .

It is a cyclic number.

It is not a de Polignac number, because 11644393 - 2¹³ = 11636201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11644343) 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, 10930 + ... + 11947.

It is an arithmetic number, because the mean of its divisors is an integer number (2916945).

Almost surely, 2^11644393 is an apocalyptic number.

It is an amenable number.

11644393 is a deficient number, since it is larger than the sum of its proper divisors (23387).

11644393 is an equidigital number, since it uses as much as digits as its factorization.

11644393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23386.

The product of its digits is 7776, while the sum is 31.

The square root of 11644393 is about 3412.3881666657. The cubic root of 11644393 is about 226.6586432666.

The spelling of 11644393 in words is "eleven million, six hundred forty-four thousand, three hundred ninety-three".