6371643 has 4 divisors (see below), whose sum is σ = 8495528. Its totient is φ = 4247760.

The previous prime is 6371641. The next prime is 6371653. The reversal of 6371643 is 3461736.

6371643 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6371643 - 2¹ = 6371641 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6371643.

It is not an unprimeable number, because it can be changed into a prime (6371641) 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, 1061938 + ... + 1061943.

It is an arithmetic number, because the mean of its divisors is an integer number (2123882).

Almost surely, 2^6371643 is an apocalyptic number.

6371643 is a deficient number, since it is larger than the sum of its proper divisors (2123885).

6371643 is a wasteful number, since it uses less digits than its factorization.

6371643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123884.

The product of its digits is 9072, while the sum is 30.

The square root of 6371643 is about 2524.2113619901. The cubic root of 6371643 is about 185.3889358239.

The spelling of 6371643 in words is "six million, three hundred seventy-one thousand, six hundred forty-three".