6708739 has 2 divisors, whose sum is σ = 6708740. Its totient is φ = 6708738.

The previous prime is 6708721. The next prime is 6708749. The reversal of 6708739 is 9378076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6708739 - 2⁹ = 6708227 is a prime.

It is not a weakly prime, because it can be changed into another prime (6708749) 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, 3354369 + 3354370.

It is an arithmetic number, because the mean of its divisors is an integer number (3354370).

Almost surely, 2^6708739 is an apocalyptic number.

6708739 is a deficient number, since it is larger than the sum of its proper divisors (1).

6708739 is an equidigital number, since it uses as much as digits as its factorization.

6708739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 6708739 is about 2590.1233561358. The cubic root of 6708739 is about 188.6022916437.

It can be divided in two parts, 6708 and 739, that added together give a palindrome (7447).

The spelling of 6708739 in words is "six million, seven hundred eight thousand, seven hundred thirty-nine".