85198956 has 12 divisors (see below), whose sum is σ = 198797592. Its totient is φ = 28399648.

The previous prime is 85198937. The next prime is 85198961. The reversal of 85198956 is 65989158.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 85198899 and 85198908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3549945 + ... + 3549968.

It is an arithmetic number, because the mean of its divisors is an integer number (16566466).

Almost surely, 2^85198956 is an apocalyptic number.

It is an amenable number.

85198956 is an abundant number, since it is smaller than the sum of its proper divisors (113598636).

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

85198956 is a wasteful number, since it uses less digits than its factorization.

85198956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7099920 (or 7099918 counting only the distinct ones).

The product of its digits is 777600, while the sum is 51.

The square root of 85198956 is about 9230.3280548418. The cubic root of 85198956 is about 440.0257491818.

The spelling of 85198956 in words is "eighty-five million, one hundred ninety-eight thousand, nine hundred fifty-six".