3867849 has 12 divisors (see below), whose sum is σ = 5881200. Its totient is φ = 2442744.

The previous prime is 3867847. The next prime is 3867859. The reversal of 3867849 is 9487683.

It is a happy number.

It is not a de Polignac number, because 3867849 - 2¹ = 3867847 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3867847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11139 + ... + 11480.

It is an arithmetic number, because the mean of its divisors is an integer number (490100).

Almost surely, 2^3867849 is an apocalyptic number.

It is an amenable number.

3867849 is a deficient number, since it is larger than the sum of its proper divisors (2013351).

3867849 is a wasteful number, since it uses less digits than its factorization.

3867849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22644 (or 22641 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 3867849 is about 1966.6847739279. The cubic root of 3867849 is about 156.9723537132.

The spelling of 3867849 in words is "three million, eight hundred sixty-seven thousand, eight hundred forty-nine".