11645685 has 24 divisors (see below), whose sum is σ = 20343960. Its totient is φ = 6162432.

The previous prime is 11645671. The next prime is 11645687. The reversal of 11645685 is 58654611.

11645685 is a `hidden beast` number, since 1 + 1 + 645 + 6 + 8 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1418481 + 10227204 = 1191^2 + 3198^2 .

It is not a de Polignac number, because 11645685 - 2⁹ = 11645173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11645687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5221 + ... + 7109.

It is an arithmetic number, because the mean of its divisors is an integer number (847665).

Almost surely, 2^11645685 is an apocalyptic number.

11645685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11645685 is a deficient number, since it is larger than the sum of its proper divisors (8698275).

11645685 is a wasteful number, since it uses less digits than its factorization.

11645685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037 (or 2034 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 11645685 is about 3412.5774716481. The cubic root of 11645685 is about 226.6670259029.

The spelling of 11645685 in words is "eleven million, six hundred forty-five thousand, six hundred eighty-five".