3865744 has 20 divisors (see below), whose sum is σ = 7523824. Its totient is φ = 1924128.

The previous prime is 3865733. The next prime is 3865747. The reversal of 3865744 is 4475683.

It is not an unprimeable number, because it can be changed into a prime (3865747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4519 + ... + 5305.

Almost surely, 2^3865744 is an apocalyptic number.

It is an amenable number.

3865744 is a deficient number, since it is larger than the sum of its proper divisors (3658080).

3865744 is a wasteful number, since it uses less digits than its factorization.

3865744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1096 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 3865744 is about 1966.1495365307. The cubic root of 3865744 is about 156.9438721837.

The spelling of 3865744 in words is "three million, eight hundred sixty-five thousand, seven hundred forty-four".