3871147 has 12 divisors (see below), whose sum is σ = 4537200. Its totient is φ = 3293136.

The previous prime is 3871139. The next prime is 3871151. The reversal of 3871147 is 7411783.

It is not a de Polignac number, because 3871147 - 2³ = 3871139 is a prime.

3871147 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3871177) 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, 9553 + ... + 9949.

It is an arithmetic number, because the mean of its divisors is an integer number (378100).

Almost surely, 2^3871147 is an apocalyptic number.

3871147 is a deficient number, since it is larger than the sum of its proper divisors (666053).

3871147 is a wasteful number, since it uses less digits than its factorization.

3871147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 603 counting only the distinct ones).

The product of its digits is 4704, while the sum is 31.

The square root of 3871147 is about 1967.5230621266. The cubic root of 3871147 is about 157.0169562602.

The spelling of 3871147 in words is "three million, eight hundred seventy-one thousand, one hundred forty-seven".