858466 has 16 divisors (see below), whose sum is σ = 1558656. Its totient is φ = 346176.

The previous prime is 858463. The next prime is 858467. The reversal of 858466 is 664858.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1566 + ... + 2041.

It is an arithmetic number, because the mean of its divisors is an integer number (97416).

2⁸⁵⁸⁴⁶⁶ is an apocalyptic number.

858466 is a deficient number, since it is larger than the sum of its proper divisors (700190).

858466 is a wasteful number, since it uses less digits than its factorization.

858466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3633.

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

The square root of 858466 is about 926.5344030310. The cubic root of 858466 is about 95.0402783958.

The spelling of 858466 in words is "eight hundred fifty-eight thousand, four hundred sixty-six".