85016917 has 2 divisors, whose sum is σ = 85016918. Its totient is φ = 85016916.

The previous prime is 85016863. The next prime is 85016923. The reversal of 85016917 is 71961058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78251716 + 6765201 = 8846^2 + 2601^2 .

It is a cyclic number.

It is not a de Polignac number, because 85016917 - 2²³ = 76628309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85016927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42508458 + 42508459.

It is an arithmetic number, because the mean of its divisors is an integer number (42508459).

Almost surely, 2^85016917 is an apocalyptic number.

It is an amenable number.

85016917 is a deficient number, since it is larger than the sum of its proper divisors (1).

85016917 is an equidigital number, since it uses as much as digits as its factorization.

85016917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 85016917 is about 9220.4618647875. The cubic root of 85016917 is about 439.7121343662.

The spelling of 85016917 in words is "eighty-five million, sixteen thousand, nine hundred seventeen".