11745689 has 2 divisors, whose sum is σ = 11745690. Its totient is φ = 11745688.

The previous prime is 11745677. The next prime is 11745697. The reversal of 11745689 is 98654711.

11745689 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9211225 + 2534464 = 3035^2 + 1592^2 .

It is an emirp because it is prime and its reverse (98654711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11745689 - 2¹⁶ = 11680153 is a prime.

It is a super-2 number, since 2×11745689² = 275922420169442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11745619) 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, 5872844 + 5872845.

It is an arithmetic number, because the mean of its divisors is an integer number (5872845).

Almost surely, 2^11745689 is an apocalyptic number.

It is an amenable number.

11745689 is a deficient number, since it is larger than the sum of its proper divisors (1).

11745689 is an equidigital number, since it uses as much as digits as its factorization.

11745689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 41.

The square root of 11745689 is about 3427.1984185337. The cubic root of 11745689 is about 227.3139903697.

The spelling of 11745689 in words is "eleven million, seven hundred forty-five thousand, six hundred eighty-nine".