858116 has 24 divisors (see below), whose sum is σ = 1807680. Its totient is φ = 348192.

The previous prime is 858113. The next prime is 858127. The reversal of 858116 is 611858.

It is not an unprimeable number, because it can be changed into a prime (858113) 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, 275 + ... + 1338.

It is an arithmetic number, because the mean of its divisors is an integer number (75320).

2⁸⁵⁸¹¹⁶ is an apocalyptic number.

It is an amenable number.

858116 is an abundant number, since it is smaller than the sum of its proper divisors (949564).

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

858116 is a wasteful number, since it uses less digits than its factorization.

858116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643 (or 1641 counting only the distinct ones).

The product of its digits is 1920, while the sum is 29.

The square root of 858116 is about 926.3455078965. The cubic root of 858116 is about 95.0273605403.

The spelling of 858116 in words is "eight hundred fifty-eight thousand, one hundred sixteen".