64844 has 24 divisors (see below), whose sum is σ = 129360. Its totient is φ = 28224.

The previous prime is 64817. The next prime is 64849. The reversal of 64844 is 44846.

64844 = T₃₂ + T₃₃ + ... + T₇₄.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a plaindrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 64844.

It is not an unprimeable number, because it can be changed into a prime (64849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1487 + ... + 1529.

It is an arithmetic number, because the mean of its divisors is an integer number (5390).

2⁶⁴⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

64844 is a deficient number, since it is larger than the sum of its proper divisors (64516).

64844 is a wasteful number, since it uses less digits than its factorization.

64844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 87 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 64844 is about 254.6448507235. The cubic root of 64844 is about 40.1750660128.

The spelling of 64844 in words is "sixty-four thousand, eight hundred forty-four".