11793581 has 2 divisors, whose sum is σ = 11793582. Its totient is φ = 11793580.

The previous prime is 11793577. The next prime is 11793589. The reversal of 11793581 is 18539711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11792356 + 1225 = 3434^2 + 35^2 .

It is a cyclic number.

It is not a de Polignac number, because 11793581 - 2² = 11793577 is a prime.

It is a super-2 number, since 2×11793581² = 278177105607122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11793589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5896790 + 5896791.

It is an arithmetic number, because the mean of its divisors is an integer number (5896791).

Almost surely, 2^11793581 is an apocalyptic number.

It is an amenable number.

11793581 is a deficient number, since it is larger than the sum of its proper divisors (1).

11793581 is an equidigital number, since it uses as much as digits as its factorization.

11793581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 35.

The square root of 11793581 is about 3434.1783587927. The cubic root of 11793581 is about 227.6225222569.

The spelling of 11793581 in words is "eleven million, seven hundred ninety-three thousand, five hundred eighty-one".