85936169 has 4 divisors (see below), whose sum is σ = 93748560. Its totient is φ = 78123780.

The previous prime is 85936159. The next prime is 85936181. The reversal of 85936169 is 96163958.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85936169 is a prime.

It is a super-2 number, since 2×85936169² = 14770050284793122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85936159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3906179 + ... + 3906200.

It is an arithmetic number, because the mean of its divisors is an integer number (23437140).

Almost surely, 2^85936169 is an apocalyptic number.

It is an amenable number.

85936169 is a deficient number, since it is larger than the sum of its proper divisors (7812391).

85936169 is a wasteful number, since it uses less digits than its factorization.

85936169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7812390.

The product of its digits is 349920, while the sum is 47.

The square root of 85936169 is about 9270.1763197903. The cubic root of 85936169 is about 441.2912636525.

The spelling of 85936169 in words is "eighty-five million, nine hundred thirty-six thousand, one hundred sixty-nine".