855458 has 8 divisors (see below), whose sum is σ = 1287120. Its totient is φ = 426420.

The previous prime is 855431. The next prime is 855461. The reversal of 855458 is 854558.

It is a happy number.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 855458.

It is an unprimeable number.

855458 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 in 3 ways as a sum of consecutive naturals, for example, 893 + ... + 1583.

It is an arithmetic number, because the mean of its divisors is an integer number (160890).

2⁸⁵⁵⁴⁵⁸ is an apocalyptic number.

855458 is a deficient number, since it is larger than the sum of its proper divisors (431662).

855458 is a wasteful number, since it uses less digits than its factorization.

855458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312.

The product of its digits is 32000, while the sum is 35.

The square root of 855458 is about 924.9097253246. The cubic root of 855458 is about 94.9291438407.

Subtracting from 855458 its reverse (854558), we obtain a square (900 = 30²).

The spelling of 855458 in words is "eight hundred fifty-five thousand, four hundred fifty-eight".