85458218 has 8 divisors (see below), whose sum is σ = 135727812. Its totient is φ = 40215616.

The previous prime is 85458203. The next prime is 85458229. The reversal of 85458218 is 81285458.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 80227849 + 5230369 = 8957^2 + 2287^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256705 + ... + 1256772.

Almost surely, 2^85458218 is an apocalyptic number.

85458218 is a deficient number, since it is larger than the sum of its proper divisors (50269594).

85458218 is a wasteful number, since it uses less digits than its factorization.

85458218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513496.

The product of its digits is 102400, while the sum is 41.

The square root of 85458218 is about 9244.3614165609. The cubic root of 85458218 is about 440.4716327095.

The spelling of 85458218 in words is "eighty-five million, four hundred fifty-eight thousand, two hundred eighteen".