853821382 has 8 divisors (see below), whose sum is σ = 1280860056. Its totient is φ = 426868032.

The previous prime is 853821349. The next prime is 853821383. The reversal of 853821382 is 283128358.

853821382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853821383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18753 + ... + 45379.

It is an arithmetic number, because the mean of its divisors is an integer number (160107507).

Almost surely, 2^853821382 is an apocalyptic number.

853821382 is a deficient number, since it is larger than the sum of its proper divisors (427038674).

853821382 is a wasteful number, since it uses less digits than its factorization.

853821382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42662.

The product of its digits is 92160, while the sum is 40.

The square root of 853821382 is about 29220.2221415238. Note that the first 3 decimals coincide. The cubic root of 853821382 is about 948.6856735092.

The spelling of 853821382 in words is "eight hundred fifty-three million, eight hundred twenty-one thousand, three hundred eighty-two".