3867816 has 16 divisors (see below), whose sum is σ = 9669600. Its totient is φ = 1289264.

The previous prime is 3867803. The next prime is 3867847. The reversal of 3867816 is 6187683.

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, 80556 + ... + 80603.

It is an arithmetic number, because the mean of its divisors is an integer number (604350).

Almost surely, 2^3867816 is an apocalyptic number.

It is an amenable number.

3867816 is an abundant number, since it is smaller than the sum of its proper divisors (5801784).

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

3867816 is a wasteful number, since it uses less digits than its factorization.

3867816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161168 (or 161164 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 3867816 is about 1966.6763841568. The cubic root of 3867816 is about 156.9719072891.

The spelling of 3867816 in words is "three million, eight hundred sixty-seven thousand, eight hundred sixteen".