6397522 has 8 divisors (see below), whose sum is σ = 9855756. Its totient is φ = 3112272.

The previous prime is 6397511. The next prime is 6397529. The reversal of 6397522 is 2257936.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6395841 + 1681 = 2529^2 + 41^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 6⁴ + 3⁹ + 9⁶ + 7⁸ + 5⁷ + 2⁷ + 2¹¹ .

It is not an unprimeable number, because it can be changed into a prime (6397529) 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, 43153 + ... + 43300.

Almost surely, 2^6397522 is an apocalyptic number.

6397522 is a deficient number, since it is larger than the sum of its proper divisors (3458234).

6397522 is a wasteful number, since it uses less digits than its factorization.

6397522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86492.

The product of its digits is 22680, while the sum is 34.

The square root of 6397522 is about 2529.3323229659. The cubic root of 6397522 is about 185.6395880489.

The spelling of 6397522 in words is "six million, three hundred ninety-seven thousand, five hundred twenty-two".