3867678 has 48 divisors (see below), whose sum is σ = 9060480. Its totient is φ = 1188432.

The previous prime is 3867649. The next prime is 3867679. The reversal of 3867678 is 8767683.

It is a super-2 number, since 2×3867678² = 29917866223368, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3867679) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14575 + ... + 14837.

It is an arithmetic number, because the mean of its divisors is an integer number (188760).

Almost surely, 2^3867678 is an apocalyptic number.

3867678 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3867678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4530240).

3867678 is an abundant number, since it is smaller than the sum of its proper divisors (5192802).

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

3867678 is a wasteful number, since it uses less digits than its factorization.

3867678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 330 counting only the distinct ones).

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

The square root of 3867678 is about 1966.6412992714. The cubic root of 3867678 is about 156.9700403974.

The spelling of 3867678 in words is "three million, eight hundred sixty-seven thousand, six hundred seventy-eight".