64863 has 6 divisors (see below), whose sum is σ = 93704. Its totient is φ = 43236.

The previous prime is 64853. The next prime is 64871. The reversal of 64863 is 36846.

It is not a de Polignac number, because 64863 - 2¹⁰ = 63839 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 64863.

It is not an unprimeable number, because it can be changed into a prime (64853) 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 in 5 ways as a sum of consecutive naturals, for example, 3595 + ... + 3612.

2⁶⁴⁸⁶³ is an apocalyptic number.

64863 is a deficient number, since it is larger than the sum of its proper divisors (28841).

64863 is a wasteful number, since it uses less digits than its factorization.

64863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7213 (or 7210 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 64863 is about 254.6821548519. The cubic root of 64863 is about 40.1789895406.

The spelling of 64863 in words is "sixty-four thousand, eight hundred sixty-three".