85570824 has 16 divisors (see below), whose sum is σ = 213927120. Its totient is φ = 28523600.

The previous prime is 85570811. The next prime is 85570829. The reversal of 85570824 is 42807558.

It is a zygodrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (85570829) 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 3 ways as a sum of consecutive naturals, for example, 1782702 + ... + 1782749.

It is an arithmetic number, because the mean of its divisors is an integer number (13370445).

Almost surely, 2^85570824 is an apocalyptic number.

It is an amenable number.

85570824 is an abundant number, since it is smaller than the sum of its proper divisors (128356296).

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

85570824 is a wasteful number, since it uses less digits than its factorization.

85570824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565460 (or 3565456 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 85570824 is about 9250.4499350032. The cubic root of 85570824 is about 440.6650136792.

The spelling of 85570824 in words is "eighty-five million, five hundred seventy thousand, eight hundred twenty-four".