85230920 has 32 divisors (see below), whose sum is σ = 192033720. Its totient is φ = 34045440.

The previous prime is 85230919. The next prime is 85230949. The reversal of 85230920 is 2903258.

It can be written as a sum of positive squares in 4 ways, for example, as 83429956 + 1800964 = 9134^2 + 1342^2 .

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52034 + ... + 53646.

Almost surely, 2^85230920 is an apocalyptic number.

It is an amenable number.

85230920 is an abundant number, since it is smaller than the sum of its proper divisors (106802800).

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

85230920 is a wasteful number, since it uses less digits than its factorization.

85230920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945 (or 2941 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 85230920 is about 9232.0593585613. The cubic root of 85230920 is about 440.0807702961.

The spelling of 85230920 in words is "eighty-five million, two hundred thirty thousand, nine hundred twenty".