85671198 has 24 divisors (see below), whose sum is σ = 186337008. Its totient is φ = 28446912.

The previous prime is 85671193. The next prime is 85671199. The reversal of 85671198 is 89117658.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85671193) 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, 4315 + ... + 13782.

It is an arithmetic number, because the mean of its divisors is an integer number (7764042).

Almost surely, 2^85671198 is an apocalyptic number.

85671198 is an abundant number, since it is smaller than the sum of its proper divisors (100665810).

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

85671198 is a wasteful number, since it uses less digits than its factorization.

85671198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18368 (or 18365 counting only the distinct ones).

The product of its digits is 120960, while the sum is 45.

The square root of 85671198 is about 9255.8737026820. The cubic root of 85671198 is about 440.8372453852.

The spelling of 85671198 in words is "eighty-five million, six hundred seventy-one thousand, one hundred ninety-eight".