6380643 has 8 divisors (see below), whose sum is σ = 8540928. Its totient is φ = 4237064.

The previous prime is 6380639. The next prime is 6380657. The reversal of 6380643 is 3460836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6380643 - 2² = 6380639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6380643.

It is not an unprimeable number, because it can be changed into a prime (6380623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3255 + ... + 4832.

It is an arithmetic number, because the mean of its divisors is an integer number (1067616).

Almost surely, 2^6380643 is an apocalyptic number.

6380643 is a deficient number, since it is larger than the sum of its proper divisors (2160285).

6380643 is a wasteful number, since it uses less digits than its factorization.

6380643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8353.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 6380643 is about 2525.9934679250. The cubic root of 6380643 is about 185.4761825747.

The spelling of 6380643 in words is "six million, three hundred eighty thousand, six hundred forty-three".