63456319 has 2 divisors, whose sum is σ = 63456320. Its totient is φ = 63456318.

The previous prime is 63456313. The next prime is 63456331. The reversal of 63456319 is 91365436.

63456319 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 is a cyclic number.

It is not a de Polignac number, because 63456319 - 2¹¹ = 63454271 is a prime.

It is a super-2 number, since 2×63456319² = 8053408842059522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63456313) 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, 31728159 + 31728160.

It is an arithmetic number, because the mean of its divisors is an integer number (31728160).

Almost surely, 2^63456319 is an apocalyptic number.

63456319 is a deficient number, since it is larger than the sum of its proper divisors (1).

63456319 is an equidigital number, since it uses as much as digits as its factorization.

63456319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 37.

The square root of 63456319 is about 7965.9474640497. The cubic root of 63456319 is about 398.8641086806.

It can be divided in two parts, 634 and 56319, that added together give a triangular number (56953 = T₃₃₇).

The spelling of 63456319 in words is "sixty-three million, four hundred fifty-six thousand, three hundred nineteen".