853368381 has 24 divisors (see below), whose sum is σ = 1241735040. Its totient is φ = 564734016.

The previous prime is 853368377. The next prime is 853368427. The reversal of 853368381 is 183863358.

It is not a de Polignac number, because 853368381 - 2² = 853368377 is a prime.

It is a super-2 number, since 2×853368381² = 1456475187381122322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853368281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1326846 + ... + 1327488.

It is an arithmetic number, because the mean of its divisors is an integer number (51738960).

Almost surely, 2^853368381 is an apocalyptic number.

It is an amenable number.

853368381 is a deficient number, since it is larger than the sum of its proper divisors (388366659).

853368381 is a wasteful number, since it uses less digits than its factorization.

853368381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505 (or 1502 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 853368381 is about 29212.4696148751. The cubic root of 853368381 is about 948.5178665207.

The spelling of 853368381 in words is "eight hundred fifty-three million, three hundred sixty-eight thousand, three hundred eighty-one".