63897593 has 2 divisors, whose sum is σ = 63897594. Its totient is φ = 63897592.

The previous prime is 63897571. The next prime is 63897601. The reversal of 63897593 is 39579836.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52954729 + 10942864 = 7277^2 + 3308^2 .

It is a cyclic number.

It is not a de Polignac number, because 63897593 - 2¹⁶ = 63832057 is a prime.

It is not a weakly prime, because it can be changed into another prime (63897503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31948796 + 31948797.

It is an arithmetic number, because the mean of its divisors is an integer number (31948797).

Almost surely, 2^63897593 is an apocalyptic number.

It is an amenable number.

63897593 is a deficient number, since it is larger than the sum of its proper divisors (1).

63897593 is an equidigital number, since it uses as much as digits as its factorization.

63897593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 50.

The square root of 63897593 is about 7993.5970000995. The cubic root of 63897593 is about 399.7865381887.

The spelling of 63897593 in words is "sixty-three million, eight hundred ninety-seven thousand, five hundred ninety-three".