11684609 has 2 divisors, whose sum is σ = 11684610. Its totient is φ = 11684608.

The previous prime is 11684597. The next prime is 11684633. The reversal of 11684609 is 90648611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11560000 + 124609 = 3400^2 + 353^2 .

It is a cyclic number.

It is not a de Polignac number, because 11684609 - 2⁸ = 11684353 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11684689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5842304 + 5842305.

It is an arithmetic number, because the mean of its divisors is an integer number (5842305).

Almost surely, 2^11684609 is an apocalyptic number.

It is an amenable number.

11684609 is a deficient number, since it is larger than the sum of its proper divisors (1).

11684609 is an equidigital number, since it uses as much as digits as its factorization.

11684609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 11684609 is about 3418.2757349284. The cubic root of 11684609 is about 226.9192788734.

The spelling of 11684609 in words is "eleven million, six hundred eighty-four thousand, six hundred nine".