63957853 has 2 divisors, whose sum is σ = 63957854. Its totient is φ = 63957852.

The previous prime is 63957841. The next prime is 63957869. The reversal of 63957853 is 35875936.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35676729 + 28281124 = 5973^2 + 5318^2 .

It is a cyclic number.

It is not a de Polignac number, because 63957853 - 2¹³ = 63949661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63957353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31978926 + 31978927.

It is an arithmetic number, because the mean of its divisors is an integer number (31978927).

Almost surely, 2^63957853 is an apocalyptic number.

It is an amenable number.

63957853 is a deficient number, since it is larger than the sum of its proper divisors (1).

63957853 is an equidigital number, since it uses as much as digits as its factorization.

63957853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 46.

The square root of 63957853 is about 7997.3653786732. The cubic root of 63957853 is about 399.9121744681.

The spelling of 63957853 in words is "sixty-three million, nine hundred fifty-seven thousand, eight hundred fifty-three".