663486983 has 2 divisors, whose sum is σ = 663486984. Its totient is φ = 663486982.

The previous prime is 663486961. The next prime is 663487009. The reversal of 663486983 is 389684366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 663486983 - 2²² = 659292679 is a prime.

It is a super-2 number, since 2×663486983² = 880429953220884578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (663486283) 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 as a sum of consecutive naturals, namely, 331743491 + 331743492.

It is an arithmetic number, because the mean of its divisors is an integer number (331743492).

Almost surely, 2^663486983 is an apocalyptic number.

663486983 is a deficient number, since it is larger than the sum of its proper divisors (1).

663486983 is an equidigital number, since it uses as much as digits as its factorization.

663486983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4478976, while the sum is 53.

The square root of 663486983 is about 25758.2410696072. The cubic root of 663486983 is about 872.1893960398.

The spelling of 663486983 in words is "six hundred sixty-three million, four hundred eighty-six thousand, nine hundred eighty-three".