3871611 has 16 divisors (see below), whose sum is σ = 6038400. Its totient is φ = 2444904.

The previous prime is 3871607. The next prime is 3871619. The reversal of 3871611 is 1161783.

It is not a de Polignac number, because 3871611 - 2² = 3871607 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (3871619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3261 + ... + 4286.

It is an arithmetic number, because the mean of its divisors is an integer number (377400).

Almost surely, 2^3871611 is an apocalyptic number.

3871611 is a deficient number, since it is larger than the sum of its proper divisors (2166789).

3871611 is a wasteful number, since it uses less digits than its factorization.

3871611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575 (or 7569 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 3871611 is about 1967.6409733485. The cubic root of 3871611 is about 157.0232294188.

The spelling of 3871611 in words is "three million, eight hundred seventy-one thousand, six hundred eleven".