63537389 has 2 divisors, whose sum is σ = 63537390. Its totient is φ = 63537388.

The previous prime is 63537379. The next prime is 63537401. The reversal of 63537389 is 98373536.

63537389 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 can be written as a sum of positive squares in only one way, i.e., 36808489 + 26728900 = 6067^2 + 5170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63537389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63537319) 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, 31768694 + 31768695.

It is an arithmetic number, because the mean of its divisors is an integer number (31768695).

Almost surely, 2^63537389 is an apocalyptic number.

It is an amenable number.

63537389 is a deficient number, since it is larger than the sum of its proper divisors (1).

63537389 is an equidigital number, since it uses as much as digits as its factorization.

63537389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 44.

The square root of 63537389 is about 7971.0343745338. The cubic root of 63537389 is about 399.0338955675.

The spelling of 63537389 in words is "sixty-three million, five hundred thirty-seven thousand, three hundred eighty-nine".