85299258 has 64 divisors (see below), whose sum is σ = 191600640. Its totient is φ = 25099200.

The previous prime is 85299239. The next prime is 85299271.

85299258 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510691 + ... + 510857.

It is an arithmetic number, because the mean of its divisors is an integer number (2993760).

Almost surely, 2^85299258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85299258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95800320).

85299258 is an abundant number, since it is smaller than the sum of its proper divisors (106301382).

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

85299258 is a wasteful number, since it uses less digits than its factorization.

85299258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its digits is 518400, while the sum is 48.

The square root of 85299258 is about 9235.7597413532. The cubic root of 85299258 is about 440.1983575342.

The spelling of 85299258 in words is "eighty-five million, two hundred ninety-nine thousand, two hundred fifty-eight".