823238 has 8 divisors (see below), whose sum is σ = 1329888. Its totient is φ = 379944.

The previous prime is 823237. The next prime is 823241. The reversal of 823238 is 832328.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 31663 = 823238 / (8 + 2 + 3 + 2 + 3 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823231) 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, 15806 + ... + 15857.

It is an arithmetic number, because the mean of its divisors is an integer number (166236).

2⁸²³²³⁸ is an apocalyptic number.

823238 is a deficient number, since it is larger than the sum of its proper divisors (506650).

823238 is a wasteful number, since it uses less digits than its factorization.

823238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31678.

The product of its digits is 2304, while the sum is 26.

The square root of 823238 is about 907.3246387044. The cubic root of 823238 is about 93.7220550784.

The spelling of 823238 in words is "eight hundred twenty-three thousand, two hundred thirty-eight".