85384679 has 4 divisors (see below), whose sum is σ = 85638384. Its totient is φ = 85130976.

The previous prime is 85384661. The next prime is 85384687. The reversal of 85384679 is 97648358.

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 85384679 - 2²⁰ = 84336103 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 (85384619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126347 + ... + 127020.

It is an arithmetic number, because the mean of its divisors is an integer number (21409596).

Almost surely, 2^85384679 is an apocalyptic number.

85384679 is a deficient number, since it is larger than the sum of its proper divisors (253705).

85384679 is a wasteful number, since it uses less digits than its factorization.

85384679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253704.

The product of its digits is 1451520, while the sum is 50.

The square root of 85384679 is about 9240.3830548306. The cubic root of 85384679 is about 440.3452507187.

The spelling of 85384679 in words is "eighty-five million, three hundred eighty-four thousand, six hundred seventy-nine".