64860 has 48 divisors (see below), whose sum is σ = 193536. Its totient is φ = 16192.

The previous prime is 64853. The next prime is 64871. The reversal of 64860 is 6846.

It is a self number, because there is not a number n which added to its sum of digits gives 64860.

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 64860.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1357 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (4032).

2⁶⁴⁸⁶⁰ is an apocalyptic number.

64860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96768).

64860 is an abundant number, since it is smaller than the sum of its proper divisors (128676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64860 is a wasteful number, since it uses less digits than its factorization.

64860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 64860 is about 254.6762650896. The cubic root of 64860 is about 40.1783700872.

The spelling of 64860 in words is "sixty-four thousand, eight hundred sixty".