3865544 has 16 divisors (see below), whose sum is σ = 7278720. Its totient is φ = 1924560.

The previous prime is 3865529. The next prime is 3865553. The reversal of 3865544 is 4455683.

3865544 is nontrivially palindromic in base 7.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277 + ... + 3059.

It is an arithmetic number, because the mean of its divisors is an integer number (454920).

Almost surely, 2^3865544 is an apocalyptic number.

It is an amenable number.

3865544 is a deficient number, since it is larger than the sum of its proper divisors (3413176).

3865544 is a wasteful number, since it uses less digits than its factorization.

3865544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2060 (or 2056 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 3865544 is about 1966.0986750415. The cubic root of 3865544 is about 156.9411655624.

The spelling of 3865544 in words is "three million, eight hundred sixty-five thousand, five hundred forty-four".