11903399 has 2 divisors, whose sum is σ = 11903400. Its totient is φ = 11903398.

The previous prime is 11903393. The next prime is 11903413. The reversal of 11903399 is 99330911.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (99330911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11903399 - 2¹⁶ = 11837863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11903393) 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 as a sum of consecutive naturals, namely, 5951699 + 5951700.

It is an arithmetic number, because the mean of its divisors is an integer number (5951700).

Almost surely, 2^11903399 is an apocalyptic number.

11903399 is a deficient number, since it is larger than the sum of its proper divisors (1).

11903399 is an equidigital number, since it uses as much as digits as its factorization.

11903399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6561, while the sum is 35.

The square root of 11903399 is about 3450.1302873950. The cubic root of 11903399 is about 228.3268562758.

The spelling of 11903399 in words is "eleven million, nine hundred three thousand, three hundred ninety-nine".