11347909 has 2 divisors, whose sum is σ = 11347910. Its totient is φ = 11347908.

The previous prime is 11347879. The next prime is 11347913. The reversal of 11347909 is 90974311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8468100 + 2879809 = 2910^2 + 1697^2 .

It is a cyclic number.

It is not a de Polignac number, because 11347909 - 2⁵ = 11347877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11347949) 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, 5673954 + 5673955.

It is an arithmetic number, because the mean of its divisors is an integer number (5673955).

Almost surely, 2^11347909 is an apocalyptic number.

It is an amenable number.

11347909 is a deficient number, since it is larger than the sum of its proper divisors (1).

11347909 is an equidigital number, since it uses as much as digits as its factorization.

11347909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 11347909 is about 3368.6657596146. The cubic root of 11347909 is about 224.7183900710.

The spelling of 11347909 in words is "eleven million, three hundred forty-seven thousand, nine hundred nine".