11993399 has 6 divisors (see below), whose sum is σ = 13182960. Its totient is φ = 10902980.

The previous prime is 11993383. The next prime is 11993407. The reversal of 11993399 is 99339911.

11993399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11993399 - 2⁴ = 11993383 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11993329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49439 + ... + 49680.

It is an arithmetic number, because the mean of its divisors is an integer number (2197160).

Almost surely, 2^11993399 is an apocalyptic number.

11993399 is a deficient number, since it is larger than the sum of its proper divisors (1189561).

11993399 is an equidigital number, since it uses as much as digits as its factorization.

11993399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99141 (or 99130 counting only the distinct ones).

The product of its digits is 59049, while the sum is 44.

The square root of 11993399 is about 3463.1487117939. The cubic root of 11993399 is about 228.9008615959.

The spelling of 11993399 in words is "eleven million, nine hundred ninety-three thousand, three hundred ninety-nine".