64868 has 6 divisors (see below), whose sum is σ = 113526. Its totient is φ = 32432.

The previous prime is 64853. The next prime is 64871. The reversal of 64868 is 86846.

It can be written as a sum of positive squares in only one way, i.e., 61504 + 3364 = 248^2 + 58^2 .

It is a plaindrome in base 13.

It is a nialpdrome in base 16.

It is an unprimeable number.

64868 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8105 + ... + 8112.

It is an arithmetic number, because the mean of its divisors is an integer number (18921).

64868 is a Friedman number, since it can be written as 4^8-668, using all its digits and the basic arithmetic operations.

2⁶⁴⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

64868 is a deficient number, since it is larger than the sum of its proper divisors (48658).

64868 is a wasteful number, since it uses less digits than its factorization.

64868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16221 (or 16219 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 64868 is about 254.6919708197. The cubic root of 64868 is about 40.1800219206.

The spelling of 64868 in words is "sixty-four thousand, eight hundred sixty-eight".