85319843 has 16 divisors (see below), whose sum is σ = 100976640. Its totient is φ = 70545600.

The previous prime is 85319837. The next prime is 85319873. The reversal of 85319843 is 34891358.

It is a cyclic number.

It is not a de Polignac number, because 85319843 - 2⁶ = 85319779 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85319843.

It is not an unprimeable number, because it can be changed into a prime (85319803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123128 + ... + 123818.

It is an arithmetic number, because the mean of its divisors is an integer number (6311040).

Almost surely, 2^85319843 is an apocalyptic number.

85319843 is a deficient number, since it is larger than the sum of its proper divisors (15656797).

85319843 is a wasteful number, since it uses less digits than its factorization.

85319843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298.

The product of its digits is 103680, while the sum is 41.

The square root of 85319843 is about 9236.8740924622. The cubic root of 85319843 is about 440.2337652449.

The spelling of 85319843 in words is "eighty-five million, three hundred nineteen thousand, eight hundred forty-three".