63316331 has 16 divisors (see below), whose sum is σ = 69768384. Its totient is φ = 57106944.

The previous prime is 63316289. The next prime is 63316333. The reversal of 63316331 is 13361336.

63316331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63316331 is a prime.

It is a super-2 number, since 2×63316331² = 8017915542603122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63316331.

It is not an unprimeable number, because it can be changed into a prime (63316333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129770 + ... + 130256.

It is an arithmetic number, because the mean of its divisors is an integer number (4360524).

Almost surely, 2^63316331 is an apocalyptic number.

63316331 is a deficient number, since it is larger than the sum of its proper divisors (6452053).

63316331 is a wasteful number, since it uses less digits than its factorization.

63316331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710.

The product of its digits is 2916, while the sum is 26.

The square root of 63316331 is about 7957.1559617743. The cubic root of 63316331 is about 398.5705876185.

Adding to 63316331 its reverse (13361336), we get a palindrome (76677667).

The spelling of 63316331 in words is "sixty-three million, three hundred sixteen thousand, three hundred thirty-one".