853320 has 64 divisors (see below), whose sum is σ = 2761920. Its totient is φ = 209664.

The previous prime is 853319. The next prime is 853339. The reversal of 853320 is 23358.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1287 + ... + 1833.

It is an arithmetic number, because the mean of its divisors is an integer number (43155).

2⁸⁵³³²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 853320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1380960).

853320 is an abundant number, since it is smaller than the sum of its proper divisors (1908600).

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

853320 is a wasteful number, since it uses less digits than its factorization.

853320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 853320 is about 923.7532137968. The cubic root of 853320 is about 94.8499941042.

Adding to 853320 its reverse (23358), we get a palindrome (876678).

The spelling of 853320 in words is "eight hundred fifty-three thousand, three hundred twenty".