11999369 has 4 divisors (see below), whose sum is σ = 12025860. Its totient is φ = 11972880.

The previous prime is 11999333. The next prime is 11999381. The reversal of 11999369 is 96399911.

11999369 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1836025 + 10163344 = 1355^2 + 3188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11999369 is a prime.

It is a super-2 number, since 2×11999369² = 287969712796322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11999329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12554 + ... + 13475.

It is an arithmetic number, because the mean of its divisors is an integer number (3006465).

Almost surely, 2^11999369 is an apocalyptic number.

It is an amenable number.

11999369 is a deficient number, since it is larger than the sum of its proper divisors (26491).

11999369 is an equidigital number, since it uses as much as digits as its factorization.

11999369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26490.

The product of its digits is 118098, while the sum is 47.

The square root of 11999369 is about 3464.0105369355. The cubic root of 11999369 is about 228.9388355810.

The spelling of 11999369 in words is "eleven million, nine hundred ninety-nine thousand, three hundred sixty-nine".