11563841 has 8 divisors (see below), whose sum is σ = 11789568. Its totient is φ = 11340000.

The previous prime is 11563829. The next prime is 11563879. The reversal of 11563841 is 14836511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11563841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11563801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18941 + ... + 19541.

It is an arithmetic number, because the mean of its divisors is an integer number (1473696).

Almost surely, 2^11563841 is an apocalyptic number.

It is an amenable number.

11563841 is a deficient number, since it is larger than the sum of its proper divisors (225727).

11563841 is an equidigital number, since it uses as much as digits as its factorization.

11563841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943.

The product of its digits is 2880, while the sum is 29.

The square root of 11563841 is about 3400.5648060286. The cubic root of 11563841 is about 226.1347839854.

The spelling of 11563841 in words is "eleven million, five hundred sixty-three thousand, eight hundred forty-one".