85798017 has 6 divisors (see below), whose sum is σ = 123930482. Its totient is φ = 57198672.

The previous prime is 85798003. The next prime is 85798019. The reversal of 85798017 is 71089758.

It can be written as a sum of positive squares in only one way, i.e., 85544001 + 254016 = 9249^2 + 504^2 .

It is not a de Polignac number, because 85798017 - 2¹⁵ = 85765249 is a prime.

It is a super-2 number, since 2×85798017² = 14722599442264578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85798019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4766548 + ... + 4766565.

Almost surely, 2^85798017 is an apocalyptic number.

It is an amenable number.

85798017 is a deficient number, since it is larger than the sum of its proper divisors (38132465).

85798017 is a wasteful number, since it uses less digits than its factorization.

85798017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9533119 (or 9533116 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The square root of 85798017 is about 9262.7219001760. The cubic root of 85798017 is about 441.0546618039.

The spelling of 85798017 in words is "eighty-five million, seven hundred ninety-eight thousand, seventeen".