85247656 has 48 divisors (see below), whose sum is σ = 183311100. Its totient is φ = 37020672.

The previous prime is 85247647. The next prime is 85247677. The reversal of 85247656 is 65674258.

It can be written as a sum of positive squares in 6 ways, for example, as 14182756 + 71064900 = 3766^2 + 8430^2 .

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 11 ways as a sum of consecutive naturals, for example, 21130 + ... + 24838.

Almost surely, 2^85247656 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 85247656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91655550).

85247656 is an abundant number, since it is smaller than the sum of its proper divisors (98063444).

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

85247656 is a wasteful number, since it uses less digits than its factorization.

85247656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3758 (or 3741 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 85247656 is about 9232.9657207205. The cubic root of 85247656 is about 440.1095732617.

The spelling of 85247656 in words is "eighty-five million, two hundred forty-seven thousand, six hundred fifty-six".