85458223 has 4 divisors (see below), whose sum is σ = 85594288. Its totient is φ = 85322160.

The previous prime is 85458203. The next prime is 85458229. The reversal of 85458223 is 32285458.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85458223 - 2²¹ = 83361071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85458229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67086 + ... + 68347.

It is an arithmetic number, because the mean of its divisors is an integer number (21398572).

Almost surely, 2^85458223 is an apocalyptic number.

85458223 is a deficient number, since it is larger than the sum of its proper divisors (136065).

85458223 is a wasteful number, since it uses less digits than its factorization.

85458223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136064.

The product of its digits is 76800, while the sum is 37.

The square root of 85458223 is about 9244.3616869960. The cubic root of 85458223 is about 440.4716412999.

The spelling of 85458223 in words is "eighty-five million, four hundred fifty-eight thousand, two hundred twenty-three".