3686787 has 12 divisors (see below), whose sum is σ = 5735184. Its totient is φ = 2268720.

The previous prime is 3686747. The next prime is 3686797. The reversal of 3686787 is 7876863.

It is not a de Polignac number, because 3686787 - 2⁶ = 3686723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3686747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15639 + ... + 15872.

It is an arithmetic number, because the mean of its divisors is an integer number (477932).

Almost surely, 2^3686787 is an apocalyptic number.

3686787 is a deficient number, since it is larger than the sum of its proper divisors (2048397).

3686787 is a wasteful number, since it uses less digits than its factorization.

3686787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31530 (or 31527 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 3686787 is about 1920.1007786051. The cubic root of 3686787 is about 154.4837070826.

The spelling of 3686787 in words is "three million, six hundred eighty-six thousand, seven hundred eighty-seven".