856486 has 8 divisors (see below), whose sum is σ = 1329120. Its totient is φ = 413448.

The previous prime is 856483. The next prime is 856487. The reversal of 856486 is 684658.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7326 + ... + 7441.

It is an arithmetic number, because the mean of its divisors is an integer number (166140).

2⁸⁵⁶⁴⁸⁶ is an apocalyptic number.

856486 is a deficient number, since it is larger than the sum of its proper divisors (472634).

856486 is a wasteful number, since it uses less digits than its factorization.

856486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14798.

The product of its digits is 46080, while the sum is 37.

The square root of 856486 is about 925.4652883820. The cubic root of 856486 is about 94.9671539265.

The spelling of 856486 in words is "eight hundred fifty-six thousand, four hundred eighty-six".