85647536 has 40 divisors (see below), whose sum is σ = 182529984. Its totient is φ = 38684160.

The previous prime is 85647533. The next prime is 85647553. The reversal of 85647536 is 63574658.

It is not an unprimeable number, because it can be changed into a prime (85647533) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5396 + ... + 14156.

Almost surely, 2^85647536 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 85647536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91264992).

85647536 is an abundant number, since it is smaller than the sum of its proper divisors (96882448).

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

85647536 is a wasteful number, since it uses less digits than its factorization.

85647536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8829 (or 8823 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The square root of 85647536 is about 9254.5953990437. The cubic root of 85647536 is about 440.7966558925.

The spelling of 85647536 in words is "eighty-five million, six hundred forty-seven thousand, five hundred thirty-six".