11664503 has 2 divisors, whose sum is σ = 11664504. Its totient is φ = 11664502.

The previous prime is 11664487. The next prime is 11664511. The reversal of 11664503 is 30546611.

It is a strong prime.

It is an emirp because it is prime and its reverse (30546611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11664503 - 2⁴ = 11664487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11664553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5832251 + 5832252.

It is an arithmetic number, because the mean of its divisors is an integer number (5832252).

Almost surely, 2^11664503 is an apocalyptic number.

11664503 is a deficient number, since it is larger than the sum of its proper divisors (1).

11664503 is an equidigital number, since it uses as much as digits as its factorization.

11664503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 11664503 is about 3415.3335122649. Note that the first 3 decimals coincide. The cubic root of 11664503 is about 226.7890489151.

It can be divided in two parts, 11664 and 503, that added together give a cube (12167 = 23³).

The spelling of 11664503 in words is "eleven million, six hundred sixty-four thousand, five hundred three".