63772897 has 2 divisors, whose sum is σ = 63772898. Its totient is φ = 63772896.

The previous prime is 63772883. The next prime is 63772903. The reversal of 63772897 is 79827736.

63772897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62157456 + 1615441 = 7884^2 + 1271^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63772897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63772897.

It is not a weakly prime, because it can be changed into another prime (63772837) 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, 31886448 + 31886449.

It is an arithmetic number, because the mean of its divisors is an integer number (31886449).

Almost surely, 2^63772897 is an apocalyptic number.

It is an amenable number.

63772897 is a deficient number, since it is larger than the sum of its proper divisors (1).

63772897 is an equidigital number, since it uses as much as digits as its factorization.

63772897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 49.

The square root of 63772897 is about 7985.7934483682. The cubic root of 63772897 is about 399.5263080112.

The spelling of 63772897 in words is "sixty-three million, seven hundred seventy-two thousand, eight hundred ninety-seven".