6663797 has 8 divisors (see below), whose sum is σ = 7642752. Its totient is φ = 5691600.

The previous prime is 6663793. The next prime is 6663809. The reversal of 6663797 is 7973666.

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

It is a cyclic number.

It is not a de Polignac number, because 6663797 - 2² = 6663793 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647 + ... + 3707.

It is an arithmetic number, because the mean of its divisors is an integer number (955344).

Almost surely, 2^6663797 is an apocalyptic number.

It is an amenable number.

6663797 is a deficient number, since it is larger than the sum of its proper divisors (978955).

6663797 is a wasteful number, since it uses less digits than its factorization.

6663797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3379.

The product of its digits is 285768, while the sum is 44.

The square root of 6663797 is about 2581.4331290971. The cubic root of 6663797 is about 188.1801973033.

The spelling of 6663797 in words is "six million, six hundred sixty-three thousand, seven hundred ninety-seven".