6313639 has 2 divisors, whose sum is σ = 6313640. Its totient is φ = 6313638.

The previous prime is 6313621. The next prime is 6313669. The reversal of 6313639 is 9363136.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6313639 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6313639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6313669) 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, 3156819 + 3156820.

It is an arithmetic number, because the mean of its divisors is an integer number (3156820).

Almost surely, 2^6313639 is an apocalyptic number.

6313639 is a deficient number, since it is larger than the sum of its proper divisors (1).

6313639 is an equidigital number, since it uses as much as digits as its factorization.

6313639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 31.

The square root of 6313639 is about 2512.6955645283. The cubic root of 6313639 is about 184.8246597747.

The spelling of 6313639 in words is "six million, three hundred thirteen thousand, six hundred thirty-nine".