64838 has 8 divisors (see below), whose sum is σ = 103032. Its totient is φ = 30496.

The previous prime is 64817. The next prime is 64849. The reversal of 64838 is 83846.

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

It is a self number, because there is not a number n which added to its sum of digits gives 64838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 920 + ... + 987.

It is an arithmetic number, because the mean of its divisors is an integer number (12879).

2⁶⁴⁸³⁸ is an apocalyptic number.

64838 is a deficient number, since it is larger than the sum of its proper divisors (38194).

64838 is a wasteful number, since it uses less digits than its factorization.

64838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926.

The product of its digits is 4608, while the sum is 29.

The square root of 64838 is about 254.6330693370. The cubic root of 64838 is about 40.1738268448.

It can be divided in two parts, 648 and 38, that added together give a palindrome (686).

The spelling of 64838 in words is "sixty-four thousand, eight hundred thirty-eight".