838231 has 4 divisors (see below), whose sum is σ = 840112. Its totient is φ = 836352.

The previous prime is 838207. The next prime is 838247. The reversal of 838231 is 132838.

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

It is a cyclic number.

It is not a de Polignac number, because 838231 - 2¹¹ = 836183 is a prime.

It is a super-2 number, since 2×838231² = 1405262418722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 838196 and 838205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151 + ... + 1303.

It is an arithmetic number, because the mean of its divisors is an integer number (210028).

2⁸³⁸²³¹ is an apocalyptic number.

838231 is a deficient number, since it is larger than the sum of its proper divisors (1881).

838231 is a wasteful number, since it uses less digits than its factorization.

838231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880.

The product of its digits is 1152, while the sum is 25.

The square root of 838231 is about 915.5495617387. The cubic root of 838231 is about 94.2875981302.

The spelling of 838231 in words is "eight hundred thirty-eight thousand, two hundred thirty-one".