663476683 has 2 divisors, whose sum is σ = 663476684. Its totient is φ = 663476682.

The previous prime is 663476669. The next prime is 663476701. The reversal of 663476683 is 386674366.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 663476683 - 2⁵ = 663476651 is a prime.

It is not a weakly prime, because it can be changed into another prime (663476183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331738341 + 331738342.

It is an arithmetic number, because the mean of its divisors is an integer number (331738342).

Almost surely, 2^663476683 is an apocalyptic number.

663476683 is a deficient number, since it is larger than the sum of its proper divisors (1).

663476683 is an equidigital number, since it uses as much as digits as its factorization.

663476683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 49.

The square root of 663476683 is about 25758.0411328191. The cubic root of 663476683 is about 872.1848827148.

The spelling of 663476683 in words is "six hundred sixty-three million, four hundred seventy-six thousand, six hundred eighty-three".