64822 has 4 divisors (see below), whose sum is σ = 97236. Its totient is φ = 32410.
The previous prime is 64817. The next prime is 64849. The reversal of 64822 is 22846.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22846 = 2 ⋅11423.
It is a plaindrome in base 11.
It is a junction number, because it is equal to n+sod(n) for n = 64793 and 64802.
It is a congruent number.
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 as a sum of consecutive naturals, namely, 16204 + ... + 16207.
It is an arithmetic number, because the mean of its divisors is an integer number (24309).
264822 is an apocalyptic number.
64822 is a deficient number, since it is larger than the sum of its proper divisors (32414).
64822 is a wasteful number, since it uses less digits than its factorization.
64822 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 32413.
The product of its digits is 768, while the sum is 22.
The square root of 64822 is about 254.6016496412. The cubic root of 64822 is about 40.1705220230.
The spelling of 64822 in words is "sixty-four thousand, eight hundred twenty-two".
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