806858 has 8 divisors (see below), whose sum is σ = 1303428. Its totient is φ = 372384.

The previous prime is 806857. The next prime is 806893. The reversal of 806858 is 858608.

It can be written as a sum of positive squares in 2 ways, for example, as 797449 + 9409 = 893^2 + 97^2 .

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 806858.

It is not an unprimeable number, because it can be changed into a prime (806857) 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, 15491 + ... + 15542.

2⁸⁰⁶⁸⁵⁸ is an apocalyptic number.

806858 is a deficient number, since it is larger than the sum of its proper divisors (496570).

806858 is a wasteful number, since it uses less digits than its factorization.

806858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31048.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 806858 is about 898.2527483955. The cubic root of 806858 is about 93.0962890637.

The spelling of 806858 in words is "eight hundred six thousand, eight hundred fifty-eight".