85289952 has 96 divisors (see below), whose sum is σ = 258660864. Its totient is φ = 24320000.

The previous prime is 85289951. The next prime is 85289989. The reversal of 85289952 is 25998258.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85289951) by changing a digit.

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, 15577 + ... + 20327.

It is an arithmetic number, because the mean of its divisors is an integer number (2694384).

Almost surely, 2^85289952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85289952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129330432).

85289952 is an abundant number, since it is smaller than the sum of its proper divisors (173370912).

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

85289952 is a wasteful number, since it uses less digits than its factorization.

85289952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4792 (or 4784 counting only the distinct ones).

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

The square root of 85289952 is about 9235.2559249866. The cubic root of 85289952 is about 440.1823486615.

The spelling of 85289952 in words is "eighty-five million, two hundred eighty-nine thousand, nine hundred fifty-two".