63841 has 2 divisors, whose sum is σ = 63842. Its totient is φ = 63840.

The previous prime is 63839. The next prime is 63853. The reversal of 63841 is 14836.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57600 + 6241 = 240^2 + 79^2 .

It is a cyclic number.

It is not a de Polignac number, because 63841 - 2¹ = 63839 is a prime.

It is a super-4 number, since 4×63841⁴ = 66444450773829219844, which contains 4444 as substring.

Together with 63839, it forms a pair of twin primes.

It is a nialpdrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31920 + 31921.

It is an arithmetic number, because the mean of its divisors is an integer number (31921).

2⁶³⁸⁴¹ is an apocalyptic number.

It is an amenable number.

63841 is a deficient number, since it is larger than the sum of its proper divisors (1).

63841 is an equidigital number, since it uses as much as digits as its factorization.

63841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 22.

The square root of 63841 is about 252.6677660486. The cubic root of 63841 is about 39.9668475304.

The spelling of 63841 in words is "sixty-three thousand, eight hundred forty-one".