838243 has 6 divisors (see below), whose sum is σ = 975156. Its totient is φ = 718452.

The previous prime is 838207. The next prime is 838247. The reversal of 838243 is 342838.

838243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 838243 - 2⁹ = 837731 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (838247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8505 + ... + 8602.

It is an arithmetic number, because the mean of its divisors is an integer number (162526).

2⁸³⁸²⁴³ is an apocalyptic number.

838243 is a deficient number, since it is larger than the sum of its proper divisors (136913).

838243 is a wasteful number, since it uses less digits than its factorization.

838243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17121 (or 17114 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 838243 is about 915.5561151562. The cubic root of 838243 is about 94.2880480641.

It can be divided in two parts, 838 and 243, that added together give a triangular number (1081 = T₄₆).

The spelling of 838243 in words is "eight hundred thirty-eight thousand, two hundred forty-three".