6438983 has 2 divisors, whose sum is σ = 6438984. Its totient is φ = 6438982.

The previous prime is 6438973. The next prime is 6438997. The reversal of 6438983 is 3898346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6438983 - 2¹⁴ = 6422599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6438983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6438923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3219491 + 3219492.

It is an arithmetic number, because the mean of its divisors is an integer number (3219492).

Almost surely, 2^6438983 is an apocalyptic number.

6438983 is a deficient number, since it is larger than the sum of its proper divisors (1).

6438983 is an equidigital number, since it uses as much as digits as its factorization.

6438983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The square root of 6438983 is about 2537.5151231076. The cubic root of 6438983 is about 186.0397552514.

The spelling of 6438983 in words is "six million, four hundred thirty-eight thousand, nine hundred eighty-three".