858046 has 16 divisors (see below), whose sum is σ = 1483776. Its totient is φ = 364536.

The previous prime is 858043. The next prime is 858073. The reversal of 858046 is 640858.

It is a junction number, because it is equal to n+sod(n) for n = 857999 and 858017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2155 + ... + 2521.

It is an arithmetic number, because the mean of its divisors is an integer number (92736).

2⁸⁵⁸⁰⁴⁶ is an apocalyptic number.

858046 is a deficient number, since it is larger than the sum of its proper divisors (625730).

858046 is a wasteful number, since it uses less digits than its factorization.

858046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 858046 is about 926.3077242472. The cubic root of 858046 is about 95.0247765477.

The spelling of 858046 in words is "eight hundred fifty-eight thousand, forty-six".