11644057 has 4 divisors (see below), whose sum is σ = 11687296. Its totient is φ = 11600820.

The previous prime is 11644043. The next prime is 11644067. The reversal of 11644057 is 75044611.

11644057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11644057 - 2¹¹ = 11642009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11644007) 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, 21213 + ... + 21754.

It is an arithmetic number, because the mean of its divisors is an integer number (2921824).

Almost surely, 2^11644057 is an apocalyptic number.

It is an amenable number.

11644057 is a deficient number, since it is larger than the sum of its proper divisors (43239).

11644057 is an equidigital number, since it uses as much as digits as its factorization.

11644057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43238.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 11644057 is about 3412.3389339279. The cubic root of 11644057 is about 226.6564631605.

Adding to 11644057 its reverse (75044611), we get a palindrome (86688668).

The spelling of 11644057 in words is "eleven million, six hundred forty-four thousand, fifty-seven".