6488939 has 2 divisors, whose sum is σ = 6488940. Its totient is φ = 6488938.

The previous prime is 6488893. The next prime is 6488941. The reversal of 6488939 is 9398846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6488939 - 2⁸ = 6488683 is a prime.

It is a Sophie Germain prime.

Together with 6488941, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6488893 and 6488902.

It is not a weakly prime, because it can be changed into another prime (6488959) 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, 3244469 + 3244470.

It is an arithmetic number, because the mean of its divisors is an integer number (3244470).

Almost surely, 2^6488939 is an apocalyptic number.

6488939 is a deficient number, since it is larger than the sum of its proper divisors (1).

6488939 is an equidigital number, since it uses as much as digits as its factorization.

6488939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 47.

The square root of 6488939 is about 2547.3395925946. The cubic root of 6488939 is about 186.5196379784.

The spelling of 6488939 in words is "six million, four hundred eighty-eight thousand, nine hundred thirty-nine".