6398983 has 2 divisors, whose sum is σ = 6398984. Its totient is φ = 6398982.

The previous prime is 6398981. The next prime is 6398999. The reversal of 6398983 is 3898936.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6398983 - 2¹ = 6398981 is a prime.

Together with 6398981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6398981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3199491 + 3199492.

It is an arithmetic number, because the mean of its divisors is an integer number (3199492).

Almost surely, 2^6398983 is an apocalyptic number.

6398983 is a deficient number, since it is larger than the sum of its proper divisors (1).

6398983 is an equidigital number, since it uses as much as digits as its factorization.

6398983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 46.

The square root of 6398983 is about 2529.6211178752. The cubic root of 6398983 is about 185.6537184572.

It can be divided in two parts, 6398 and 983, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 6398983 in words is "six million, three hundred ninety-eight thousand, nine hundred eighty-three".