11605841 has 4 divisors (see below), whose sum is σ = 12498612. Its totient is φ = 10713072.

The previous prime is 11605817. The next prime is 11605859. The reversal of 11605841 is 14850611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14850611 = 2539 ⋅5849.

It can be written as a sum of positive squares in 2 ways, for example, as 3625216 + 7980625 = 1904^2 + 2825^2 .

It is a cyclic number.

It is not a de Polignac number, because 11605841 - 2¹⁸ = 11343697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11605841.

It is not an unprimeable number, because it can be changed into a prime (11605801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446366 + ... + 446391.

It is an arithmetic number, because the mean of its divisors is an integer number (3124653).

Almost surely, 2^11605841 is an apocalyptic number.

It is an amenable number.

11605841 is a deficient number, since it is larger than the sum of its proper divisors (892771).

11605841 is an equidigital number, since it uses as much as digits as its factorization.

11605841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892770.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 11605841 is about 3406.7346535943. The cubic root of 11605841 is about 226.4082278909.

The spelling of 11605841 in words is "eleven million, six hundred five thousand, eight hundred forty-one".