11391799 has 2 divisors, whose sum is σ = 11391800. Its totient is φ = 11391798.

The previous prime is 11391791. The next prime is 11391803. The reversal of 11391799 is 99719311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11391799 - 2³ = 11391791 is a prime.

It is a super-3 number, since 3×11391799³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11391791) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5695899 + 5695900.

It is an arithmetic number, because the mean of its divisors is an integer number (5695900).

Almost surely, 2^11391799 is an apocalyptic number.

11391799 is a deficient number, since it is larger than the sum of its proper divisors (1).

11391799 is an equidigital number, since it uses as much as digits as its factorization.

11391799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15309, while the sum is 40.

The square root of 11391799 is about 3375.1739214446. The cubic root of 11391799 is about 225.0077297756.

The spelling of 11391799 in words is "eleven million, three hundred ninety-one thousand, seven hundred ninety-nine".