85587970 has 32 divisors (see below), whose sum is σ = 174646080. Its totient is φ = 29937600.

The previous prime is 85587949. The next prime is 85588003. The reversal of 85587970 is 7978558.

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 15 ways as a sum of consecutive naturals, for example, 14856 + ... + 19795.

It is an arithmetic number, because the mean of its divisors is an integer number (5457690).

Almost surely, 2^85587970 is an apocalyptic number.

85587970 is an abundant number, since it is smaller than the sum of its proper divisors (89058110).

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

85587970 is a wasteful number, since it uses less digits than its factorization.

85587970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34690.

The product of its (nonzero) digits is 705600, while the sum is 49.

The square root of 85587970 is about 9251.3766543148. The cubic root of 85587970 is about 440.6944440286.

The spelling of 85587970 in words is "eighty-five million, five hundred eighty-seven thousand, nine hundred seventy".