663632313 has 8 divisors (see below), whose sum is σ = 884979648. Its totient is φ = 442353264.

The previous prime is 663632261. The next prime is 663632353. The reversal of 663632313 is 313236366.

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

It is not a de Polignac number, because 663632313 - 2¹⁴ = 663615929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (663632353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13356 + ... + 38802.

It is an arithmetic number, because the mean of its divisors is an integer number (110622456).

Almost surely, 2^663632313 is an apocalyptic number.

It is an amenable number.

663632313 is a deficient number, since it is larger than the sum of its proper divisors (221347335).

663632313 is a wasteful number, since it uses less digits than its factorization.

663632313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34143.

The product of its digits is 34992, while the sum is 33.

The square root of 663632313 is about 25761.0619540422. The cubic root of 663632313 is about 872.2530727632.

Adding to 663632313 its reverse (313236366), we get a palindrome (976868679).

The spelling of 663632313 in words is "six hundred sixty-three million, six hundred thirty-two thousand, three hundred thirteen".