11985699 has 16 divisors (see below), whose sum is σ = 17512704. Its totient is φ = 7231200.

The previous prime is 11985689. The next prime is 11985703. The reversal of 11985699 is 99658911.

It is not a de Polignac number, because 11985699 - 2⁴ = 11985683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11985689) 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 in 15 ways as a sum of consecutive naturals, for example, 7989 + ... + 9369.

It is an arithmetic number, because the mean of its divisors is an integer number (1094544).

Almost surely, 2^11985699 is an apocalyptic number.

11985699 is a deficient number, since it is larger than the sum of its proper divisors (5527005).

11985699 is a wasteful number, since it uses less digits than its factorization.

11985699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658.

The product of its digits is 174960, while the sum is 48.

The square root of 11985699 is about 3462.0368282270. The cubic root of 11985699 is about 228.8518648112.

The spelling of 11985699 in words is "eleven million, nine hundred eighty-five thousand, six hundred ninety-nine".