85968198 has 48 divisors (see below), whose sum is σ = 197336880. Its totient is φ = 26972352.

The previous prime is 85968193. The next prime is 85968221. The reversal of 85968198 is 89186958.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85968193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58440 + ... + 59892.

It is an arithmetic number, because the mean of its divisors is an integer number (4111185).

Almost surely, 2^85968198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85968198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98668440).

85968198 is an abundant number, since it is smaller than the sum of its proper divisors (111368682).

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

85968198 is a wasteful number, since it uses less digits than its factorization.

85968198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653 (or 1650 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

The square root of 85968198 is about 9271.9036880244. The cubic root of 85968198 is about 441.3460809371.

The spelling of 85968198 in words is "eighty-five million, nine hundred sixty-eight thousand, one hundred ninety-eight".