3686705 has 16 divisors (see below), whose sum is σ = 5111424. Its totient is φ = 2522880.

The previous prime is 3686701. The next prime is 3686713. The reversal of 3686705 is 5076863.

It is a happy number.

It is not a de Polignac number, because 3686705 - 2² = 3686701 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1037 + ... + 2906.

It is an arithmetic number, because the mean of its divisors is an integer number (319464).

Almost surely, 2^3686705 is an apocalyptic number.

It is an amenable number.

3686705 is a deficient number, since it is larger than the sum of its proper divisors (1424719).

3686705 is a wasteful number, since it uses less digits than its factorization.

3686705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3976.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 3686705 is about 1920.0794254405. The cubic root of 3686705 is about 154.4825617531.

The spelling of 3686705 in words is "three million, six hundred eighty-six thousand, seven hundred five".