85117293 has 12 divisors (see below), whose sum is σ = 123774300. Its totient is φ = 56363136.

The previous prime is 85117259. The next prime is 85117303. The reversal of 85117293 is 39271158.

It can be written as a sum of positive squares in 2 ways, for example, as 14607684 + 70509609 = 3822^2 + 8397^2 .

It is not a de Polignac number, because 85117293 - 2¹⁴ = 85100909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85117223) 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 11 ways as a sum of consecutive naturals, for example, 30396 + ... + 33077.

It is an arithmetic number, because the mean of its divisors is an integer number (10314525).

Almost surely, 2^85117293 is an apocalyptic number.

It is an amenable number.

85117293 is a deficient number, since it is larger than the sum of its proper divisors (38657007).

85117293 is a wasteful number, since it uses less digits than its factorization.

85117293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63628 (or 63625 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 85117293 is about 9225.9033704023. The cubic root of 85117293 is about 439.8851163564.

The spelling of 85117293 in words is "eighty-five million, one hundred seventeen thousand, two hundred ninety-three".