11564493 has 12 divisors (see below), whose sum is σ = 15606720. Its totient is φ = 7616952.

The previous prime is 11564479. The next prime is 11564503. The reversal of 11564493 is 39446511.

It is not a de Polignac number, because 11564493 - 2⁸ = 11564237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11562493) 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 11 ways as a sum of consecutive naturals, for example, 48268 + ... + 48506.

It is an arithmetic number, because the mean of its divisors is an integer number (1300560).

Almost surely, 2^11564493 is an apocalyptic number.

It is an amenable number.

11564493 is a deficient number, since it is larger than the sum of its proper divisors (4042227).

11564493 is an equidigital number, since it uses as much as digits as its factorization.

11564493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 369 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 11564493 is about 3400.6606711050. The cubic root of 11564493 is about 226.1390339316.

The spelling of 11564493 in words is "eleven million, five hundred sixty-four thousand, four hundred ninety-three".