856098 has 24 divisors (see below), whose sum is σ = 1872000. Its totient is φ = 282744.

The previous prime is 856081. The next prime is 856099. The reversal of 856098 is 890658.

856098 is a `hidden beast` number, since 8 + 560 + 98 = 666.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (856099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3463 + ... + 3701.

It is an arithmetic number, because the mean of its divisors is an integer number (78000).

2⁸⁵⁶⁰⁹⁸ is an apocalyptic number.

856098 is an abundant number, since it is smaller than the sum of its proper divisors (1015902).

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

856098 is a wasteful number, since it uses less digits than its factorization.

856098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 856098 is about 925.2556403503. The cubic root of 856098 is about 94.9528112825.

Adding to 856098 its product of nonzero digits (17280), we get a palindrome (873378).

The spelling of 856098 in words is "eight hundred fifty-six thousand, ninety-eight".