11932909 has 2 divisors, whose sum is σ = 11932910. Its totient is φ = 11932908.

The previous prime is 11932889. The next prime is 11932919. The reversal of 11932909 is 90923911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10824100 + 1108809 = 3290^2 + 1053^2 .

It is a cyclic number.

It is not a de Polignac number, because 11932909 - 2²¹ = 9835757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11932919) 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, 5966454 + 5966455.

It is an arithmetic number, because the mean of its divisors is an integer number (5966455).

Almost surely, 2^11932909 is an apocalyptic number.

It is an amenable number.

11932909 is a deficient number, since it is larger than the sum of its proper divisors (1).

11932909 is an equidigital number, since it uses as much as digits as its factorization.

11932909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 11932909 is about 3454.4042901780. The cubic root of 11932909 is about 228.5153840830.

The spelling of 11932909 in words is "eleven million, nine hundred thirty-two thousand, nine hundred nine".