6858198 has 12 divisors (see below), whose sum is σ = 14859468. Its totient is φ = 2286060.

The previous prime is 6858179. The next prime is 6858233. The reversal of 6858198 is 8918586.

Added to its reverse (8918586) it gives a square (15776784 = 3972²).

6858198 is a `hidden beast` number, since 68 + 581 + 9 + 8 = 666.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 190488 + ... + 190523.

It is an arithmetic number, because the mean of its divisors is an integer number (1238289).

Almost surely, 2^6858198 is an apocalyptic number.

6858198 is an abundant number, since it is smaller than the sum of its proper divisors (8001270).

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

6858198 is a wasteful number, since it uses less digits than its factorization.

6858198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381019 (or 381016 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 6858198 is about 2618.8161447494. The cubic root of 6858198 is about 189.9925943559.

Adding to 6858198 its reverse (8918586), we get a square (15776784 = 3972²).

It can be divided in two parts, 6858 and 198, that added together give a square (7056 = 84²).

The spelling of 6858198 in words is "six million, eight hundred fifty-eight thousand, one hundred ninety-eight".