85239693 has 24 divisors (see below), whose sum is σ = 153506496. Its totient is φ = 44280000.

The previous prime is 85239659. The next prime is 85239727. The reversal of 85239693 is 39693258.

It is an interprime number because it is at equal distance from previous prime (85239659) and next prime (85239727).

It is not a de Polignac number, because 85239693 - 2²⁰ = 84191117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85239653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60808 + ... + 62193.

It is an arithmetic number, because the mean of its divisors is an integer number (6396104).

Almost surely, 2^85239693 is an apocalyptic number.

It is an amenable number.

85239693 is a deficient number, since it is larger than the sum of its proper divisors (68266803).

85239693 is a wasteful number, since it uses less digits than its factorization.

85239693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123025 (or 123022 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 85239693 is about 9232.5344840948. The cubic root of 85239693 is about 440.0958692616.

It can be divided in two parts, 85 and 239693, that added together give a triangular number (239778 = T₆₉₂).

The spelling of 85239693 in words is "eighty-five million, two hundred thirty-nine thousand, six hundred ninety-three".