855238 has 4 divisors (see below), whose sum is σ = 1282860. Its totient is φ = 427618.

The previous prime is 855229. The next prime is 855241. The reversal of 855238 is 832558.

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

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 a congruent number.

It is an unprimeable number.

855238 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213808 + ... + 213811.

It is an arithmetic number, because the mean of its divisors is an integer number (320715).

2⁸⁵⁵²³⁸ is an apocalyptic number.

855238 is a deficient number, since it is larger than the sum of its proper divisors (427622).

855238 is a wasteful number, since it uses less digits than its factorization.

855238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427621.

The product of its digits is 9600, while the sum is 31.

The square root of 855238 is about 924.7907871513. The cubic root of 855238 is about 94.9210054313.

The spelling of 855238 in words is "eight hundred fifty-five thousand, two hundred thirty-eight".