11969399 has 8 divisors (see below), whose sum is σ = 13009920. Its totient is φ = 10946016.

The previous prime is 11969387. The next prime is 11969401. The reversal of 11969399 is 99396911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11969399 - 2⁴ = 11969383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11969329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2807 + ... + 5640.

It is an arithmetic number, because the mean of its divisors is an integer number (1626240).

Almost surely, 2^11969399 is an apocalyptic number.

11969399 is a deficient number, since it is larger than the sum of its proper divisors (1040521).

11969399 is a wasteful number, since it uses less digits than its factorization.

11969399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8569.

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

The square root of 11969399 is about 3459.6819217957. The cubic root of 11969399 is about 228.7480750731.

The spelling of 11969399 in words is "eleven million, nine hundred sixty-nine thousand, three hundred ninety-nine".