85473220 has 24 divisors (see below), whose sum is σ = 205136064. Its totient is φ = 29305056.

The previous prime is 85473209. The next prime is 85473251. The reversal of 85473220 is 2237458.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct 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, 305122 + ... + 305401.

It is an arithmetic number, because the mean of its divisors is an integer number (8547336).

Almost surely, 2^85473220 is an apocalyptic number.

It is an amenable number.

85473220 is an abundant number, since it is smaller than the sum of its proper divisors (119662844).

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

85473220 is a wasteful number, since it uses less digits than its factorization.

85473220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610539 (or 610537 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 85473220 is about 9245.1727944912. The cubic root of 85473220 is about 440.4974058065.

The spelling of 85473220 in words is "eighty-five million, four hundred seventy-three thousand, two hundred twenty".