6338993 has 2 divisors, whose sum is σ = 6338994. Its totient is φ = 6338992.

The previous prime is 6338971. The next prime is 6338999. The reversal of 6338993 is 3998336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6265009 + 73984 = 2503^2 + 272^2 .

It is a cyclic number.

It is not a de Polignac number, because 6338993 - 2¹⁸ = 6076849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6338993.

It is not a weakly prime, because it can be changed into another prime (6338999) 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 as a sum of consecutive naturals, namely, 3169496 + 3169497.

It is an arithmetic number, because the mean of its divisors is an integer number (3169497).

Almost surely, 2^6338993 is an apocalyptic number.

It is an amenable number.

6338993 is a deficient number, since it is larger than the sum of its proper divisors (1).

6338993 is an equidigital number, since it uses as much as digits as its factorization.

6338993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 41.

The square root of 6338993 is about 2517.7356890667. The cubic root of 6338993 is about 185.0717325916.

The spelling of 6338993 in words is "six million, three hundred thirty-eight thousand, nine hundred ninety-three".