11816999 has 2 divisors, whose sum is σ = 11817000. Its totient is φ = 11816998.

The previous prime is 11816977. The next prime is 11817019. The reversal of 11816999 is 99961811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11816999 - 2¹² = 11812903 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 (11810999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5908499 + 5908500.

It is an arithmetic number, because the mean of its divisors is an integer number (5908500).

Almost surely, 2^11816999 is an apocalyptic number.

11816999 is a deficient number, since it is larger than the sum of its proper divisors (1).

11816999 is an equidigital number, since it uses as much as digits as its factorization.

11816999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 44.

The square root of 11816999 is about 3437.5862171006. The cubic root of 11816999 is about 227.7730826890.

The spelling of 11816999 in words is "eleven million, eight hundred sixteen thousand, nine hundred ninety-nine".