85469 has 2 divisors, whose sum is σ = 85470. Its totient is φ = 85468.

The previous prime is 85453. The next prime is 85487. The reversal of 85469 is 96458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84100 + 1369 = 290^2 + 37^2 .

It is a cyclic number.

It is not a de Polignac number, because 85469 - 2⁴ = 85453 is a prime.

It is a super-2 number, since 2×85469² = 14609899922, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42734 + 42735.

It is an arithmetic number, because the mean of its divisors is an integer number (42735).

2⁸⁵⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

85469 is a deficient number, since it is larger than the sum of its proper divisors (1).

85469 is an equidigital number, since it uses as much as digits as its factorization.

85469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 85469 is about 292.3508166570. The cubic root of 85469 is about 44.0490156247.

The spelling of 85469 in words is "eighty-five thousand, four hundred sixty-nine".