85686145 has 8 divisors (see below), whose sum is σ = 102873600. Its totient is φ = 68515440.

The previous prime is 85686127. The next prime is 85686149. The reversal of 85686145 is 54168658.

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

It is not a de Polignac number, because 85686145 - 2¹³ = 85677953 is a prime.

It is a super-2 number, since 2×85686145² = 14684230889922050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85686149) 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, 15456 + ... + 20254.

It is an arithmetic number, because the mean of its divisors is an integer number (12859200).

Almost surely, 2^85686145 is an apocalyptic number.

It is an amenable number.

85686145 is a deficient number, since it is larger than the sum of its proper divisors (17187455).

85686145 is a wasteful number, since it uses less digits than its factorization.

85686145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8375.

The product of its digits is 230400, while the sum is 43.

The square root of 85686145 is about 9256.6811006969. The cubic root of 85686145 is about 440.8628814266.

The spelling of 85686145 in words is "eighty-five million, six hundred eighty-six thousand, one hundred forty-five".