11644469 has 2 divisors, whose sum is σ = 11644470. Its totient is φ = 11644468.

The previous prime is 11644453. The next prime is 11644483. The reversal of 11644469 is 96444611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7086244 + 4558225 = 2662^2 + 2135^2 .

It is a cyclic number.

It is not a de Polignac number, because 11644469 - 2⁴ = 11644453 is a prime.

It is a super-2 number, since 2×11644469² = 271187316583922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11644069) 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 as a sum of consecutive naturals, namely, 5822234 + 5822235.

It is an arithmetic number, because the mean of its divisors is an integer number (5822235).

Almost surely, 2^11644469 is an apocalyptic number.

It is an amenable number.

11644469 is a deficient number, since it is larger than the sum of its proper divisors (1).

11644469 is an equidigital number, since it uses as much as digits as its factorization.

11644469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 11644469 is about 3412.3993025436. The cubic root of 11644469 is about 226.6591363800.

The spelling of 11644469 in words is "eleven million, six hundred forty-four thousand, four hundred sixty-nine".