11715983 has 2 divisors, whose sum is σ = 11715984. Its totient is φ = 11715982.

The previous prime is 11715967. The next prime is 11715997. The reversal of 11715983 is 38951711.

It is a strong prime.

It is an emirp because it is prime and its reverse (38951711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11715983 - 2⁴ = 11715967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11715943) 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, 5857991 + 5857992.

It is an arithmetic number, because the mean of its divisors is an integer number (5857992).

Almost surely, 2^11715983 is an apocalyptic number.

11715983 is a deficient number, since it is larger than the sum of its proper divisors (1).

11715983 is an equidigital number, since it uses as much as digits as its factorization.

11715983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 35.

The square root of 11715983 is about 3422.8618143302. The cubic root of 11715983 is about 227.1221954606.

The spelling of 11715983 in words is "eleven million, seven hundred fifteen thousand, nine hundred eighty-three".