3686895 has 12 divisors (see below), whose sum is σ = 6390696. Its totient is φ = 1966320.

The previous prime is 3686867. The next prime is 3686927. The reversal of 3686895 is 5986863.

It is not a de Polignac number, because 3686895 - 2⁹ = 3686383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 81931 = 3686895 / (3 + 6 + 8 + 6 + 8 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3686895.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40921 + ... + 41010.

It is an arithmetic number, because the mean of its divisors is an integer number (532558).

Almost surely, 2^3686895 is an apocalyptic number.

3686895 is a deficient number, since it is larger than the sum of its proper divisors (2703801).

3686895 is a wasteful number, since it uses less digits than its factorization.

3686895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81942 (or 81939 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 3686895 is about 1920.1289019230. The cubic root of 3686895 is about 154.4852155394.

Subtracting 3686895 from its reverse (5986863), we obtain a cube (2299968 = 132³).

It can be divided in two parts, 36868 and 95, that added together give a palindrome (36963).

The spelling of 3686895 in words is "three million, six hundred eighty-six thousand, eight hundred ninety-five".