3865734 has 12 divisors (see below), whose sum is σ = 8375796. Its totient is φ = 1288572.

The previous prime is 3865733. The next prime is 3865747. The reversal of 3865734 is 4375683.

It is a happy number.

3865734 is a `hidden beast` number, since 3 + 86 + 573 + 4 = 666.

It is a d-powerful number, because it can be written as 3⁸ + 8⁵ + 6 + 5⁹ + 7⁵ + 3¹³ + 4⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107364 + ... + 107399.

It is an arithmetic number, because the mean of its divisors is an integer number (697983).

Almost surely, 2^3865734 is an apocalyptic number.

3865734 is an abundant number, since it is smaller than the sum of its proper divisors (4510062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3865734 is a wasteful number, since it uses less digits than its factorization.

3865734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214771 (or 214768 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 3865734 is about 1966.1469934875. The cubic root of 3865734 is about 156.9437368549.

The spelling of 3865734 in words is "three million, eight hundred sixty-five thousand, seven hundred thirty-four".