3867818 has 16 divisors (see below), whose sum is σ = 6186240. Its totient is φ = 1809456.

The previous prime is 3867803. The next prime is 3867847. The reversal of 3867818 is 8187683.

It is a super-2 number, since 2×3867818² = 29920032162248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1268 + ... + 3056.

It is an arithmetic number, because the mean of its divisors is an integer number (386640).

Almost surely, 2^3867818 is an apocalyptic number.

3867818 is a deficient number, since it is larger than the sum of its proper divisors (2318422).

3867818 is a wasteful number, since it uses less digits than its factorization.

3867818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861.

The product of its digits is 64512, while the sum is 41.

The square root of 3867818 is about 1966.6768926288. The cubic root of 3867818 is about 156.9719343452.

The spelling of 3867818 in words is "three million, eight hundred sixty-seven thousand, eight hundred eighteen".