85646224 has 40 divisors (see below), whose sum is σ = 176372640. Its totient is φ = 40174848.

The previous prime is 85646179. The next prime is 85646237. The reversal of 85646224 is 42264658.

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 7 ways as a sum of consecutive naturals, for example, 31212 + ... + 33844.

It is an arithmetic number, because the mean of its divisors is an integer number (4409316).

Almost surely, 2^85646224 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 85646224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88186320).

85646224 is an abundant number, since it is smaller than the sum of its proper divisors (90726416).

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

85646224 is a wasteful number, since it uses less digits than its factorization.

85646224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767 (or 2761 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 85646224 is about 9254.5245150683. The cubic root of 85646224 is about 440.7944050858.

The spelling of 85646224 in words is "eighty-five million, six hundred forty-six thousand, two hundred twenty-four".