11644491 has 8 divisors (see below), whose sum is σ = 15543360. Its totient is φ = 7754312.

The previous prime is 11644483. The next prime is 11644517. The reversal of 11644491 is 19444611.

11644491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11644491 - 2³ = 11644483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11644091) 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 7 ways as a sum of consecutive naturals, for example, 2236 + ... + 5318.

It is an arithmetic number, because the mean of its divisors is an integer number (1942920).

Almost surely, 2^11644491 is an apocalyptic number.

11644491 is a deficient number, since it is larger than the sum of its proper divisors (3898869).

11644491 is a wasteful number, since it uses less digits than its factorization.

11644491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4345.

The product of its digits is 3456, while the sum is 30.

The square root of 11644491 is about 3412.4025260804. The cubic root of 11644491 is about 226.6592791229.

The spelling of 11644491 in words is "eleven million, six hundred forty-four thousand, four hundred ninety-one".