6315689 has 4 divisors (see below), whose sum is σ = 6320724. Its totient is φ = 6310656.

The previous prime is 6315677. The next prime is 6315691. The reversal of 6315689 is 9865136.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3312400 + 3003289 = 1820^2 + 1733^2 .

It is a cyclic number.

It is not a de Polignac number, because 6315689 - 2⁸ = 6315433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6315629) 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, 1049 + ... + 3705.

It is an arithmetic number, because the mean of its divisors is an integer number (1580181).

Almost surely, 2^6315689 is an apocalyptic number.

It is an amenable number.

6315689 is a deficient number, since it is larger than the sum of its proper divisors (5035).

6315689 is a wasteful number, since it uses less digits than its factorization.

6315689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5034.

The product of its digits is 38880, while the sum is 38.

The square root of 6315689 is about 2513.1034598679. The cubic root of 6315689 is about 184.8446614225.

The spelling of 6315689 in words is "six million, three hundred fifteen thousand, six hundred eighty-nine".