3871137 has 4 divisors (see below), whose sum is σ = 5161520. Its totient is φ = 2580756.

The previous prime is 3871129. The next prime is 3871139. The reversal of 3871137 is 7311783.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3871137 - 2³ = 3871129 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3871139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645187 + ... + 645192.

It is an arithmetic number, because the mean of its divisors is an integer number (1290380).

Almost surely, 2^3871137 is an apocalyptic number.

It is an amenable number.

3871137 is a deficient number, since it is larger than the sum of its proper divisors (1290383).

3871137 is a wasteful number, since it uses less digits than its factorization.

3871137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290382.

The product of its digits is 3528, while the sum is 30.

The square root of 3871137 is about 1967.5205208587. The cubic root of 3871137 is about 157.0168210573.

The spelling of 3871137 in words is "three million, eight hundred seventy-one thousand, one hundred thirty-seven".