3865736 has 16 divisors (see below), whose sum is σ = 8283840. Its totient is φ = 1656720.

The previous prime is 3865733. The next prime is 3865747. The reversal of 3865736 is 6375683.

It is a self number, because there is not a number n which added to its sum of digits gives 3865736.

It is not an unprimeable number, because it can be changed into a prime (3865733) 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, 34460 + ... + 34571.

It is an arithmetic number, because the mean of its divisors is an integer number (517740).

Almost surely, 2^3865736 is an apocalyptic number.

It is an amenable number.

3865736 is an abundant number, since it is smaller than the sum of its proper divisors (4418104).

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

3865736 is a wasteful number, since it uses less digits than its factorization.

3865736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69044 (or 69040 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 3865736 is about 1966.1475020964. The cubic root of 3865736 is about 156.9437639207.

The spelling of 3865736 in words is "three million, eight hundred sixty-five thousand, seven hundred thirty-six".