866058 has 32 divisors (see below), whose sum is σ = 1866240. Its totient is φ = 267120.

The previous prime is 866057. The next prime is 866081. The reversal of 866058 is 850668.

866058 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (866051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8041 + ... + 8147.

It is an arithmetic number, because the mean of its divisors is an integer number (58320).

2⁸⁶⁶⁰⁵⁸ is an apocalyptic number.

866058 is an abundant number, since it is smaller than the sum of its proper divisors (1000182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

866058 is a wasteful number, since it uses less digits than its factorization.

866058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 866058 is about 930.6223723939. The cubic root of 866058 is about 95.3196251773.

It can be divided in two parts, 8 and 66058, that added together give a palindrome (66066).

The spelling of 866058 in words is "eight hundred sixty-six thousand, fifty-eight".