85204223 has 12 divisors (see below), whose sum is σ = 92710728. Its totient is φ = 78268320.

The previous prime is 85204219. The next prime is 85204243. The reversal of 85204223 is 32240258.

It is not a de Polignac number, because 85204223 - 2² = 85204219 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85204192 and 85204201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85204243) 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, 37253 + ... + 39473.

It is an arithmetic number, because the mean of its divisors is an integer number (7725894).

Almost surely, 2^85204223 is an apocalyptic number.

85204223 is a deficient number, since it is larger than the sum of its proper divisors (7506505).

85204223 is a wasteful number, since it uses less digits than its factorization.

85204223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474 (or 2461 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 85204223 is about 9230.6133599019. The cubic root of 85204223 is about 440.0348164598.

The spelling of 85204223 in words is "eighty-five million, two hundred four thousand, two hundred twenty-three".