85319 has 4 divisors (see below), whose sum is σ = 91896. Its totient is φ = 78744.

The previous prime is 85313. The next prime is 85331. The reversal of 85319 is 91358.

85319 = T₂ + T₃ + ... + T₇₉.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85319 - 2⁴ = 85303 is a prime.

It is a super-4 number, since 4×85319⁴ (a number of 21 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 85319.

It is not an unprimeable number, because it can be changed into a prime (85313) 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, 3269 + ... + 3294.

It is an arithmetic number, because the mean of its divisors is an integer number (22974).

2⁸⁵³¹⁹ is an apocalyptic number.

85319 is a deficient number, since it is larger than the sum of its proper divisors (6577).

85319 is a wasteful number, since it uses less digits than its factorization.

85319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6576.

The product of its digits is 1080, while the sum is 26.

The square root of 85319 is about 292.0941628996. The cubic root of 85319 is about 44.0232315335.

It can be divided in two parts, 85 and 319, that added together give a palindrome (404).

The spelling of 85319 in words is "eighty-five thousand, three hundred nineteen".