6347399 has 4 divisors (see below), whose sum is σ = 6358464. Its totient is φ = 6336336.

The previous prime is 6347381. The next prime is 6347447. The reversal of 6347399 is 9937436.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6347399 - 2²⁰ = 5298823 is a prime.

It is a d-powerful number, because it can be written as 6⁶ + 3⁵ + 4⁶ + 7⁸ + 3¹² + 9² + 9² .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6347309) 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 in 3 ways as a sum of consecutive naturals, for example, 4622 + ... + 5835.

It is an arithmetic number, because the mean of its divisors is an integer number (1589616).

Almost surely, 2^6347399 is an apocalyptic number.

6347399 is a deficient number, since it is larger than the sum of its proper divisors (11065).

6347399 is a wasteful number, since it uses less digits than its factorization.

6347399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11064.

The product of its digits is 122472, while the sum is 41.

The square root of 6347399 is about 2519.4044931293. The cubic root of 6347399 is about 185.1535029835.

The spelling of 6347399 in words is "six million, three hundred forty-seven thousand, three hundred ninety-nine".