6871641 has 32 divisors (see below), whose sum is σ = 11225088. Its totient is φ = 3653760.

The previous prime is 6871639. The next prime is 6871651. The reversal of 6871641 is 1461786.

It is a happy number.

It is not a de Polignac number, because 6871641 - 2¹ = 6871639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6871651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19630 + ... + 19976.

It is an arithmetic number, because the mean of its divisors is an integer number (350784).

Almost surely, 2^6871641 is an apocalyptic number.

It is an amenable number.

6871641 is a deficient number, since it is larger than the sum of its proper divisors (4353447).

6871641 is a wasteful number, since it uses less digits than its factorization.

6871641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421.

The product of its digits is 8064, while the sum is 33.

The square root of 6871641 is about 2621.3815060002. The cubic root of 6871641 is about 190.1166504362.

The spelling of 6871641 in words is "six million, eight hundred seventy-one thousand, six hundred forty-one".