85710169 has 8 divisors (see below), whose sum is σ = 87781320. Its totient is φ = 83655936.

The previous prime is 85710113. The next prime is 85710179. The reversal of 85710169 is 96101758.

It can be written as a sum of positive squares in 4 ways, for example, as 24870169 + 60840000 = 4987^2 + 7800^2 .

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 85710169 - 2¹¹ = 85708121 is a prime.

It is a super-2 number, since 2×85710169² = 14692466140017122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85710179) 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, 6337 + ... + 14545.

It is an arithmetic number, because the mean of its divisors is an integer number (10972665).

Almost surely, 2^85710169 is an apocalyptic number.

It is an amenable number.

85710169 is a deficient number, since it is larger than the sum of its proper divisors (2071151).

85710169 is a wasteful number, since it uses less digits than its factorization.

85710169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8459.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 85710169 is about 9257.9786670741. The cubic root of 85710169 is about 440.9040794530.

It can be divided in two parts, 857 and 10169, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 85710169 in words is "eighty-five million, seven hundred ten thousand, one hundred sixty-nine".