3865706 has 12 divisors (see below), whose sum is σ = 6279462. Its totient is φ = 1784016.

The previous prime is 3865691. The next prime is 3865733. The reversal of 3865706 is 6075683.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1540081 + 2325625 = 1241^2 + 1525^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5381 + ... + 6056.

Almost surely, 2^3865706 is an apocalyptic number.

3865706 is a deficient number, since it is larger than the sum of its proper divisors (2413756).

3865706 is a wasteful number, since it uses less digits than its factorization.

3865706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11465 (or 11452 counting only the distinct ones).

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

The square root of 3865706 is about 1966.1398729490. The cubic root of 3865706 is about 156.9433579329.

The spelling of 3865706 in words is "three million, eight hundred sixty-five thousand, seven hundred six".