85658223 has 48 divisors (see below), whose sum is σ = 142228224. Its totient is φ = 45561600.

The previous prime is 85658207. The next prime is 85658231. The reversal of 85658223 is 32285658.

It is not a de Polignac number, because 85658223 - 2⁴ = 85658207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85658263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 377236 + ... + 377462.

It is an arithmetic number, because the mean of its divisors is an integer number (2963088).

Almost surely, 2^85658223 is an apocalyptic number.

85658223 is a deficient number, since it is larger than the sum of its proper divisors (56570001).

85658223 is a wasteful number, since it uses less digits than its factorization.

85658223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 405 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 85658223 is about 9255.1727698623. The cubic root of 85658223 is about 440.8149891615.

The spelling of 85658223 in words is "eighty-five million, six hundred fifty-eight thousand, two hundred twenty-three".