85445 has 8 divisors (see below), whose sum is σ = 107136. Its totient is φ = 65296.

The previous prime is 85439. The next prime is 85447. The reversal of 85445 is 54458.

85445 is nontrivially palindromic in base 4.

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

It is a cyclic number.

It is not a de Polignac number, because 85445 - 2⁴ = 85429 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 257 + ... + 486.

It is an arithmetic number, because the mean of its divisors is an integer number (13392).

2⁸⁵⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

85445 is a deficient number, since it is larger than the sum of its proper divisors (21691).

85445 is a wasteful number, since it uses less digits than its factorization.

85445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771.

The product of its digits is 3200, while the sum is 26.

The square root of 85445 is about 292.3097671991. The cubic root of 85445 is about 44.0448921985.

The spelling of 85445 in words is "eighty-five thousand, four hundred forty-five".