11689257 has 8 divisors (see below), whose sum is σ = 15850080. Its totient is φ = 7660640.

The previous prime is 11689243. The next prime is 11689273. The reversal of 11689257 is 75298611.

11689257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11689257 - 2⁶ = 11689193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11689277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32844 + ... + 33197.

It is an arithmetic number, because the mean of its divisors is an integer number (1981260).

Almost surely, 2^11689257 is an apocalyptic number.

It is an amenable number.

11689257 is a deficient number, since it is larger than the sum of its proper divisors (4160823).

11689257 is an equidigital number, since it uses as much as digits as its factorization.

11689257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66103.

The product of its digits is 30240, while the sum is 39.

The square root of 11689257 is about 3418.9555422673. The cubic root of 11689257 is about 226.9493634912.

The spelling of 11689257 in words is "eleven million, six hundred eighty-nine thousand, two hundred fifty-seven".