63853 has 2 divisors, whose sum is σ = 63854. Its totient is φ = 63852.

The previous prime is 63841. The next prime is 63857. The reversal of 63853 is 35836.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39204 + 24649 = 198^2 + 157^2 .

63853 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 63853 - 2¹³ = 55661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31926 + 31927.

It is an arithmetic number, because the mean of its divisors is an integer number (31927).

2⁶³⁸⁵³ is an apocalyptic number.

It is an amenable number.

63853 is a deficient number, since it is larger than the sum of its proper divisors (1).

63853 is an equidigital number, since it uses as much as digits as its factorization.

63853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 63853 is about 252.6915115314. The cubic root of 63853 is about 39.9693515228.

The spelling of 63853 in words is "sixty-three thousand, eight hundred fifty-three".