3871668 has 24 divisors (see below), whose sum is σ = 9509920. Its totient is φ = 1222560.

The previous prime is 3871663. The next prime is 3871669. The reversal of 3871668 is 8661783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8263 + ... + 8718.

Almost surely, 2^3871668 is an apocalyptic number.

3871668 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3871668 is an abundant number, since it is smaller than the sum of its proper divisors (5638252).

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

3871668 is a wasteful number, since it uses less digits than its factorization.

3871668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17007 (or 17005 counting only the distinct ones).

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

The square root of 3871668 is about 1967.6554576450. The cubic root of 3871668 is about 157.0240000093.

The spelling of 3871668 in words is "three million, eight hundred seventy-one thousand, six hundred sixty-eight".