64808863 has 8 divisors (see below), whose sum is σ = 74444832. Its totient is φ = 55267296.

The previous prime is 64808839. The next prime is 64808921. The reversal of 64808863 is 36880846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64808863 - 2⁹ = 64808351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64808813) 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 in 7 ways as a sum of consecutive naturals, for example, 22120 + ... + 24877.

It is an arithmetic number, because the mean of its divisors is an integer number (9305604).

Almost surely, 2^64808863 is an apocalyptic number.

64808863 is a deficient number, since it is larger than the sum of its proper divisors (9635969).

64808863 is a wasteful number, since it uses less digits than its factorization.

64808863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47201.

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 64808863 is about 8050.3952076901. The cubic root of 64808863 is about 401.6780815115.

The spelling of 64808863 in words is "sixty-four million, eight hundred eight thousand, eight hundred sixty-three".