3867867 has 12 divisors (see below), whose sum is σ = 5666544. Its totient is φ = 2541840.

The previous prime is 3867859. The next prime is 3867881. The reversal of 3867867 is 7687683.

It is not a de Polignac number, because 3867867 - 2³ = 3867859 is a prime.

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, 2388 + ... + 3665.

It is an arithmetic number, because the mean of its divisors is an integer number (472212).

Almost surely, 2^3867867 is an apocalyptic number.

3867867 is a deficient number, since it is larger than the sum of its proper divisors (1798677).

3867867 is a wasteful number, since it uses less digits than its factorization.

3867867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6130 (or 6127 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 3867867 is about 1966.6893501517. The cubic root of 3867867 is about 156.9725972161.

The spelling of 3867867 in words is "three million, eight hundred sixty-seven thousand, eight hundred sixty-seven".