855243 has 6 divisors (see below), whose sum is σ = 1235364. Its totient is φ = 570156.

The previous prime is 855241. The next prime is 855269. The reversal of 855243 is 342558.

855243 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 855243 - 2¹ = 855241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (855241) 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, 47505 + ... + 47522.

It is an arithmetic number, because the mean of its divisors is an integer number (205894).

2⁸⁵⁵²⁴³ is an apocalyptic number.

855243 is a deficient number, since it is larger than the sum of its proper divisors (380121).

855243 is a wasteful number, since it uses less digits than its factorization.

855243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95033 (or 95030 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 855243 is about 924.7934904615. The cubic root of 855243 is about 94.9211904106.

The spelling of 855243 in words is "eight hundred fifty-five thousand, two hundred forty-three".