84985317 has 6 divisors (see below), whose sum is σ = 122756582. Its totient is φ = 56656872.

The previous prime is 84985301. The next prime is 84985321. The reversal of 84985317 is 71358948.

It can be written as a sum of positive squares in only one way, i.e., 74545956 + 10439361 = 8634^2 + 3231^2 .

It is not a de Polignac number, because 84985317 - 2⁴ = 84985301 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 (84985357) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4721398 + ... + 4721415.

Almost surely, 2^84985317 is an apocalyptic number.

It is an amenable number.

84985317 is a deficient number, since it is larger than the sum of its proper divisors (37771265).

84985317 is a wasteful number, since it uses less digits than its factorization.

84985317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9442819 (or 9442816 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 84985317 is about 9218.7481254235. The cubic root of 84985317 is about 439.6576486402.

The spelling of 84985317 in words is "eighty-four million, nine hundred eighty-five thousand, three hundred seventeen".