85069 has 4 divisors (see below), whose sum is σ = 86044. Its totient is φ = 84096.

The previous prime is 85061. The next prime is 85081. The reversal of 85069 is 96058.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96058 = 2 ⋅48029.

It can be written as a sum of positive squares in 2 ways, for example, as 56169 + 28900 = 237^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 85069 - 2³ = 85061 is a prime.

It is a super-2 number, since 2×85069² = 14473469522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85061) 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, 342 + ... + 535.

It is an arithmetic number, because the mean of its divisors is an integer number (21511).

2⁸⁵⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

85069 is a deficient number, since it is larger than the sum of its proper divisors (975).

85069 is an equidigital number, since it uses as much as digits as its factorization.

85069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 85069 is about 291.6659047609. The cubic root of 85069 is about 43.9801908076.

It can be divided in two parts, 8506 and 9, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 85069 in words is "eighty-five thousand, sixty-nine".