85441 has 4 divisors (see below), whose sum is σ = 87472. Its totient is φ = 83412.

The previous prime is 85439. The next prime is 85447. The reversal of 85441 is 14458.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14458 = 2 ⋅7229.

It is a cyclic number.

It is not a de Polignac number, because 85441 - 2¹ = 85439 is a prime.

It is a Duffinian number.

85441 is a lucky number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (85447) 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, 951 + ... + 1036.

It is an arithmetic number, because the mean of its divisors is an integer number (21868).

2⁸⁵⁴⁴¹ is an apocalyptic number.

It is an amenable number.

85441 is a deficient number, since it is larger than the sum of its proper divisors (2031).

85441 is a wasteful number, since it uses less digits than its factorization.

85441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030.

The product of its digits is 640, while the sum is 22.

The square root of 85441 is about 292.3029250623. The cubic root of 85441 is about 44.0442048857.

Adding to 85441 its reverse (14458), we get a palindrome (99899).

The spelling of 85441 in words is "eighty-five thousand, four hundred forty-one".