11664487 has 2 divisors, whose sum is σ = 11664488. Its totient is φ = 11664486.

The previous prime is 11664479. The next prime is 11664503. The reversal of 11664487 is 78446611.

It is a happy number.

11664487 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11664487 - 2³ = 11664479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11664407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5832243 + 5832244.

It is an arithmetic number, because the mean of its divisors is an integer number (5832244).

Almost surely, 2^11664487 is an apocalyptic number.

11664487 is a deficient number, since it is larger than the sum of its proper divisors (1).

11664487 is an equidigital number, since it uses as much as digits as its factorization.

11664487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 37.

The square root of 11664487 is about 3415.3311698868. The cubic root of 11664487 is about 226.7889452209.

The spelling of 11664487 in words is "eleven million, six hundred sixty-four thousand, four hundred eighty-seven".