11799409 has 2 divisors, whose sum is σ = 11799410. Its totient is φ = 11799408.

The previous prime is 11799401. The next prime is 11799421. The reversal of 11799409 is 90499711.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11370384 + 429025 = 3372^2 + 655^2 .

It is an emirp because it is prime and its reverse (90499711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11799409 - 2³ = 11799401 is a prime.

It is not a weakly prime, because it can be changed into another prime (11799401) 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, 5899704 + 5899705.

It is an arithmetic number, because the mean of its divisors is an integer number (5899705).

Almost surely, 2^11799409 is an apocalyptic number.

It is an amenable number.

11799409 is a deficient number, since it is larger than the sum of its proper divisors (1).

11799409 is an equidigital number, since it uses as much as digits as its factorization.

11799409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 11799409 is about 3435.0267830106. The cubic root of 11799409 is about 227.6600106048.

The spelling of 11799409 in words is "eleven million, seven hundred ninety-nine thousand, four hundred nine".