3686745 has 8 divisors (see below), whose sum is σ = 5898816. Its totient is φ = 1966256.

The previous prime is 3686743. The next prime is 3686747. The reversal of 3686745 is 5476863.

It is an interprime number because it is at equal distance from previous prime (3686743) and next prime (3686747).

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 3686745 - 2¹ = 3686743 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3686743) 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, 122877 + ... + 122906.

It is an arithmetic number, because the mean of its divisors is an integer number (737352).

Almost surely, 2^3686745 is an apocalyptic number.

It is an amenable number.

3686745 is a deficient number, since it is larger than the sum of its proper divisors (2212071).

3686745 is a wasteful number, since it uses less digits than its factorization.

3686745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245791.

The product of its digits is 120960, while the sum is 39.

The square root of 3686745 is about 1920.0898416480. The cubic root of 3686745 is about 154.4831204525.

Subtracting from 3686745 its product of digits (120960), we obtain a triangular number (3565785 = T₂₆₇₀).

The spelling of 3686745 in words is "three million, six hundred eighty-six thousand, seven hundred forty-five".