838165 has 4 divisors (see below), whose sum is σ = 1005804. Its totient is φ = 670528.

The previous prime is 838157. The next prime is 838169. The reversal of 838165 is 561838.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88209 + 749956 = 297^2 + 866^2 .

It is a cyclic number.

It is not a de Polignac number, because 838165 - 2³ = 838157 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838169) 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, 83812 + ... + 83821.

It is an arithmetic number, because the mean of its divisors is an integer number (251451).

2⁸³⁸¹⁶⁵ is an apocalyptic number.

It is an amenable number.

838165 is a deficient number, since it is larger than the sum of its proper divisors (167639).

838165 is a wasteful number, since it uses less digits than its factorization.

838165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167638.

The product of its digits is 5760, while the sum is 31.

The square root of 838165 is about 915.5135171039. The cubic root of 838165 is about 94.2851234166.

The spelling of 838165 in words is "eight hundred thirty-eight thousand, one hundred sixty-five".