85156859 has 8 divisors (see below), whose sum is σ = 90247248. Its totient is φ = 80075520.

The previous prime is 85156853. The next prime is 85156873. The reversal of 85156859 is 95865158.

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 85156859 - 2⁴ = 85156843 is a prime.

It is a super-3 number, since 3×85156859³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85156853) 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, 32519 + ... + 35039.

It is an arithmetic number, because the mean of its divisors is an integer number (11280906).

Almost surely, 2^85156859 is an apocalyptic number.

85156859 is a deficient number, since it is larger than the sum of its proper divisors (5090389).

85156859 is a wasteful number, since it uses less digits than its factorization.

85156859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525.

The product of its digits is 432000, while the sum is 47.

The square root of 85156859 is about 9228.0474099346. The cubic root of 85156859 is about 439.9532646642.

The spelling of 85156859 in words is "eighty-five million, one hundred fifty-six thousand, eight hundred fifty-nine".