663217675 has 12 divisors (see below), whose sum is σ = 850749120. Its totient is φ = 512277920.

The previous prime is 663217661. The next prime is 663217691. The reversal of 663217675 is 576712366.

It is not a de Polignac number, because 663217675 - 2¹⁷ = 663086603 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 456667 + ... + 458116.

It is an arithmetic number, because the mean of its divisors is an integer number (70895760).

Almost surely, 2^663217675 is an apocalyptic number.

663217675 is a deficient number, since it is larger than the sum of its proper divisors (187531445).

663217675 is a wasteful number, since it uses less digits than its factorization.

663217675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914822 (or 914817 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The square root of 663217675 is about 25753.0129305291. The cubic root of 663217675 is about 872.0713734435.

The spelling of 663217675 in words is "six hundred sixty-three million, two hundred seventeen thousand, six hundred seventy-five".