11663983 has 2 divisors, whose sum is σ = 11663984. Its totient is φ = 11663982.

The previous prime is 11663957. The next prime is 11664017. The reversal of 11663983 is 38936611.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11663983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11663923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5831991 + 5831992.

It is an arithmetic number, because the mean of its divisors is an integer number (5831992).

Almost surely, 2^11663983 is an apocalyptic number.

11663983 is a deficient number, since it is larger than the sum of its proper divisors (1).

11663983 is an equidigital number, since it uses as much as digits as its factorization.

11663983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 11663983 is about 3415.2573841513. The cubic root of 11663983 is about 226.7856788027.

The spelling of 11663983 in words is "eleven million, six hundred sixty-three thousand, nine hundred eighty-three".