6390717 has 4 divisors (see below), whose sum is σ = 8520960. Its totient is φ = 4260476.

The previous prime is 6390697. The next prime is 6390719. The reversal of 6390717 is 7170936.

6390717 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6390717 - 2⁶ = 6390653 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6390719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065117 + ... + 1065122.

It is an arithmetic number, because the mean of its divisors is an integer number (2130240).

Almost surely, 2^6390717 is an apocalyptic number.

It is an amenable number.

6390717 is a deficient number, since it is larger than the sum of its proper divisors (2130243).

6390717 is a wasteful number, since it uses less digits than its factorization.

6390717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130242.

The product of its (nonzero) digits is 7938, while the sum is 33.

The square root of 6390717 is about 2527.9867483830. The cubic root of 6390717 is about 185.5737435143.

The spelling of 6390717 in words is "six million, three hundred ninety thousand, seven hundred seventeen".