85581308 has 12 divisors (see below), whose sum is σ = 149942352. Its totient is φ = 42740640.

The previous prime is 85581289. The next prime is 85581317. The reversal of 85581308 is 80318558.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8513 + ... + 15608.

It is an arithmetic number, because the mean of its divisors is an integer number (12495196).

Almost surely, 2^85581308 is an apocalyptic number.

It is an amenable number.

85581308 is a deficient number, since it is larger than the sum of its proper divisors (64361044).

85581308 is a wasteful number, since it uses less digits than its factorization.

85581308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25012 (or 25010 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 38.

The square root of 85581308 is about 9251.0165927859. The cubic root of 85581308 is about 440.6830094677.

The spelling of 85581308 in words is "eighty-five million, five hundred eighty-one thousand, three hundred eight".