11744857 has 4 divisors (see below), whose sum is σ = 11866036. Its totient is φ = 11623680.

The previous prime is 11744849. The next prime is 11744861. The reversal of 11744857 is 75844711.

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 4583881 + 7160976 = 2141^2 + 2676^2 .

It is a cyclic number.

It is not a de Polignac number, because 11744857 - 2³ = 11744849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11744827) 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, 60444 + ... + 60637.

It is an arithmetic number, because the mean of its divisors is an integer number (2966509).

Almost surely, 2^11744857 is an apocalyptic number.

It is an amenable number.

11744857 is a deficient number, since it is larger than the sum of its proper divisors (121179).

11744857 is an equidigital number, since it uses as much as digits as its factorization.

11744857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121178.

The product of its digits is 31360, while the sum is 37.

The square root of 11744857 is about 3427.0770344420. The cubic root of 11744857 is about 227.3086230188.

The spelling of 11744857 in words is "eleven million, seven hundred forty-four thousand, eight hundred fifty-seven".