11405899 has 2 divisors, whose sum is σ = 11405900. Its totient is φ = 11405898.

The previous prime is 11405873. The next prime is 11405959. The reversal of 11405899 is 99850411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11405899 - 2¹³ = 11397707 is a prime.

It is not a weakly prime, because it can be changed into another prime (11405809) 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 as a sum of consecutive naturals, namely, 5702949 + 5702950.

It is an arithmetic number, because the mean of its divisors is an integer number (5702950).

Almost surely, 2^11405899 is an apocalyptic number.

11405899 is a deficient number, since it is larger than the sum of its proper divisors (1).

11405899 is an equidigital number, since it uses as much as digits as its factorization.

11405899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 11405899 is about 3377.2620567554. The cubic root of 11405899 is about 225.1005246286.

The spelling of 11405899 in words is "eleven million, four hundred five thousand, eight hundred ninety-nine".