63527917 has 2 divisors, whose sum is σ = 63527918. Its totient is φ = 63527916.

The previous prime is 63527903. The next prime is 63527939. The reversal of 63527917 is 71972536.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39576681 + 23951236 = 6291^2 + 4894^2 .

It is a cyclic number.

It is not a de Polignac number, because 63527917 - 2¹⁵ = 63495149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63527917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63527957) 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, 31763958 + 31763959.

It is an arithmetic number, because the mean of its divisors is an integer number (31763959).

Almost surely, 2^63527917 is an apocalyptic number.

It is an amenable number.

63527917 is a deficient number, since it is larger than the sum of its proper divisors (1).

63527917 is an equidigital number, since it uses as much as digits as its factorization.

63527917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 40.

The square root of 63527917 is about 7970.4402011432. The cubic root of 63527917 is about 399.0140655800.

The spelling of 63527917 in words is "sixty-three million, five hundred twenty-seven thousand, nine hundred seventeen".