85229658 has 40 divisors (see below), whose sum is σ = 192905460. Its totient is φ = 28123200.

The previous prime is 85229623. The next prime is 85229701. The reversal of 85229658 is 85692258.

It can be written as a sum of positive squares in 2 ways, for example, as 56746089 + 28483569 = 7533^2 + 5337^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13758 + ... + 18966.

Almost surely, 2^85229658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85229658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96452730).

85229658 is an abundant number, since it is smaller than the sum of its proper divisors (107675802).

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

85229658 is a wasteful number, since it uses less digits than its factorization.

85229658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5324 (or 5315 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 85229658 is about 9231.9910095277. The cubic root of 85229658 is about 440.0785982179.

The spelling of 85229658 in words is "eighty-five million, two hundred twenty-nine thousand, six hundred fifty-eight".