11769409 has 2 divisors, whose sum is σ = 11769410. Its totient is φ = 11769408.

The previous prime is 11769397. The next prime is 11769413. The reversal of 11769409 is 90496711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11751184 + 18225 = 3428^2 + 135^2 .

It is a cyclic number.

It is not a de Polignac number, because 11769409 - 2⁷ = 11769281 is a prime.

It is not a weakly prime, because it can be changed into another prime (11769479) 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, 5884704 + 5884705.

It is an arithmetic number, because the mean of its divisors is an integer number (5884705).

Almost surely, 2^11769409 is an apocalyptic number.

It is an amenable number.

11769409 is a deficient number, since it is larger than the sum of its proper divisors (1).

11769409 is an equidigital number, since it uses as much as digits as its factorization.

11769409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 11769409 is about 3430.6572256639. The cubic root of 11769409 is about 227.4669049793.

It can be divided in two parts, 1176 and 9409, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 11769409 in words is "eleven million, seven hundred sixty-nine thousand, four hundred nine".