85208539 has 8 divisors (see below), whose sum is σ = 97161120. Its totient is φ = 74027136.

The previous prime is 85208533. The next prime is 85208551. The reversal of 85208539 is 93580258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85208539 - 2⁷ = 85208411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85208533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192559 + ... + 193000.

It is an arithmetic number, because the mean of its divisors is an integer number (12145140).

Almost surely, 2^85208539 is an apocalyptic number.

85208539 is a deficient number, since it is larger than the sum of its proper divisors (11952581).

85208539 is a wasteful number, since it uses less digits than its factorization.

85208539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385589.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 85208539 is about 9230.8471442225. The cubic root of 85208539 is about 440.0422462880.

The spelling of 85208539 in words is "eighty-five million, two hundred eight thousand, five hundred thirty-nine".