8371641 has 4 divisors (see below), whose sum is σ = 11162192. Its totient is φ = 5581092.

The previous prime is 8371639. The next prime is 8371679. The reversal of 8371641 is 1461738.

It is a happy number.

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 8371641 - 2¹ = 8371639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8371599 and 8371608.

It is not an unprimeable number, because it can be changed into a prime (8371631) 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, 1395271 + ... + 1395276.

It is an arithmetic number, because the mean of its divisors is an integer number (2790548).

Almost surely, 2^8371641 is an apocalyptic number.

It is an amenable number.

8371641 is a deficient number, since it is larger than the sum of its proper divisors (2790551).

8371641 is a wasteful number, since it uses less digits than its factorization.

8371641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790550.

The product of its digits is 4032, while the sum is 30.

The square root of 8371641 is about 2893.3788206870. The cubic root of 8371641 is about 203.0502516603.

Subtracting from 8371641 its reverse (1461738), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 8371641 in words is "eight million, three hundred seventy-one thousand, six hundred forty-one".