849381 has 16 divisors (see below), whose sum is σ = 1263360. Its totient is φ = 504000.

The previous prime is 849353. The next prime is 849383. The reversal of 849381 is 183948.

It is not a de Polignac number, because 849381 - 2⁵ = 849349 is a prime.

It is a super-2 number, since 2×849381² = 1442896166322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756 + ... + 1506.

It is an arithmetic number, because the mean of its divisors is an integer number (78960).

2⁸⁴⁹³⁸¹ is an apocalyptic number.

It is an amenable number.

849381 is a deficient number, since it is larger than the sum of its proper divisors (413979).

849381 is a wasteful number, since it uses less digits than its factorization.

849381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796.

The product of its digits is 6912, while the sum is 33.

The square root of 849381 is about 921.6186847064. The cubic root of 849381 is about 94.7038236624.

The spelling of 849381 in words is "eight hundred forty-nine thousand, three hundred eighty-one".