11309689 has 2 divisors, whose sum is σ = 11309690. Its totient is φ = 11309688.

The previous prime is 11309687. The next prime is 11309707. The reversal of 11309689 is 98690311.

11309689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6760000 + 4549689 = 2600^2 + 2133^2 .

It is a cyclic number.

It is not a de Polignac number, because 11309689 - 2¹ = 11309687 is a prime.

Together with 11309687, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11309687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5654844 + 5654845.

It is an arithmetic number, because the mean of its divisors is an integer number (5654845).

Almost surely, 2^11309689 is an apocalyptic number.

It is an amenable number.

11309689 is a deficient number, since it is larger than the sum of its proper divisors (1).

11309689 is an equidigital number, since it uses as much as digits as its factorization.

11309689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 11309689 is about 3362.9881058368. The cubic root of 11309689 is about 224.4658208590.

The spelling of 11309689 in words is "eleven million, three hundred nine thousand, six hundred eighty-nine".