63319873 has 2 divisors, whose sum is σ = 63319874. Its totient is φ = 63319872.

The previous prime is 63319871. The next prime is 63319877. The reversal of 63319873 is 37891336.

63319873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61340224 + 1979649 = 7832^2 + 1407^2 .

It is a cyclic number.

It is not a de Polignac number, because 63319873 - 2¹ = 63319871 is a prime.

It is a super-2 number, since 2×63319873² = 8018812633472258, which contains 22 as substring.

Together with 63319871, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (63319871) 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 as a sum of consecutive naturals, namely, 31659936 + 31659937.

It is an arithmetic number, because the mean of its divisors is an integer number (31659937).

Almost surely, 2^63319873 is an apocalyptic number.

It is an amenable number.

63319873 is a deficient number, since it is larger than the sum of its proper divisors (1).

63319873 is an equidigital number, since it uses as much as digits as its factorization.

63319873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 40.

The square root of 63319873 is about 7957.3785256201. The cubic root of 63319873 is about 398.5780196700.

The spelling of 63319873 in words is "sixty-three million, three hundred nineteen thousand, eight hundred seventy-three".