85204422 has 24 divisors (see below), whose sum is σ = 184803840. Its totient is φ = 28371600.

The previous prime is 85204411. The next prime is 85204429. The reversal of 85204422 is 22440258.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85204429) 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, 21172 + ... + 24872.

It is an arithmetic number, because the mean of its divisors is an integer number (7700160).

Almost surely, 2^85204422 is an apocalyptic number.

85204422 is an abundant number, since it is smaller than the sum of its proper divisors (99599418).

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

85204422 is a wasteful number, since it uses less digits than its factorization.

85204422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988 (or 4985 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 85204422 is about 9230.6241392443. The cubic root of 85204422 is about 440.0351590362.

The spelling of 85204422 in words is "eighty-five million, two hundred four thousand, four hundred twenty-two".