85289574 has 32 divisors (see below), whose sum is σ = 174493440. Its totient is φ = 27783392.

The previous prime is 85289569. The next prime is 85289591. The reversal of 85289574 is 47598258.

It is a super-2 number, since 2×85289574² = 14548622866202952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69127 + ... + 70349.

It is an arithmetic number, because the mean of its divisors is an integer number (5452920).

Almost surely, 2^85289574 is an apocalyptic number.

85289574 is an abundant number, since it is smaller than the sum of its proper divisors (89203866).

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

85289574 is a wasteful number, since it uses less digits than its factorization.

85289574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484.

The product of its digits is 806400, while the sum is 48.

The square root of 85289574 is about 9235.2354599111. The cubic root of 85289574 is about 440.1816983732.

The spelling of 85289574 in words is "eighty-five million, two hundred eighty-nine thousand, five hundred seventy-four".