63272813 has 2 divisors, whose sum is σ = 63272814. Its totient is φ = 63272812.

The previous prime is 63272801. The next prime is 63272819. The reversal of 63272813 is 31827236.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32058244 + 31214569 = 5662^2 + 5587^2 .

It is a cyclic number.

It is not a de Polignac number, because 63272813 - 2²⁰ = 62224237 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63272813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63272819) 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 as a sum of consecutive naturals, namely, 31636406 + 31636407.

It is an arithmetic number, because the mean of its divisors is an integer number (31636407).

Almost surely, 2^63272813 is an apocalyptic number.

It is an amenable number.

63272813 is a deficient number, since it is larger than the sum of its proper divisors (1).

63272813 is an equidigital number, since it uses as much as digits as its factorization.

63272813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 63272813 is about 7954.4209720130. The cubic root of 63272813 is about 398.4792527297.

The spelling of 63272813 in words is "sixty-three million, two hundred seventy-two thousand, eight hundred thirteen".