63957589 has 2 divisors, whose sum is σ = 63957590. Its totient is φ = 63957588.

The previous prime is 63957583. The next prime is 63957601. The reversal of 63957589 is 98575936.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42640900 + 21316689 = 6530^2 + 4617^2 .

It is a cyclic number.

It is not a de Polignac number, because 63957589 - 2¹⁹ = 63433301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63957583) 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, 31978794 + 31978795.

It is an arithmetic number, because the mean of its divisors is an integer number (31978795).

Almost surely, 2^63957589 is an apocalyptic number.

It is an amenable number.

63957589 is a deficient number, since it is larger than the sum of its proper divisors (1).

63957589 is an equidigital number, since it uses as much as digits as its factorization.

63957589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 52.

The square root of 63957589 is about 7997.3488732204. The cubic root of 63957589 is about 399.9116242257.

It can be divided in two parts, 63957 and 589, that added together give a palindrome (64546).

The spelling of 63957589 in words is "sixty-three million, nine hundred fifty-seven thousand, five hundred eighty-nine".