11605685 has 32 divisors (see below), whose sum is σ = 17902080. Its totient is φ = 7020288.

The previous prime is 11605661. The next prime is 11605703. The reversal of 11605685 is 58650611.

It is a happy number.

11605685 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11605685 - 2¹⁰ = 11604661 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9911 + ... + 11019.

It is an arithmetic number, because the mean of its divisors is an integer number (559440).

Almost surely, 2^11605685 is an apocalyptic number.

It is an amenable number.

11605685 is a deficient number, since it is larger than the sum of its proper divisors (6296395).

11605685 is a wasteful number, since it uses less digits than its factorization.

11605685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 11605685 is about 3406.7117576925. The cubic root of 11605685 is about 226.4072134637.

The spelling of 11605685 in words is "eleven million, six hundred five thousand, six hundred eighty-five".