84559117 has 2 divisors, whose sum is σ = 84559118. Its totient is φ = 84559116.

The previous prime is 84559093. The next prime is 84559169. The reversal of 84559117 is 71195548.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69705801 + 14853316 = 8349^2 + 3854^2 .

It is a cyclic number.

It is not a de Polignac number, because 84559117 - 2¹⁹ = 84034829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84559117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84559187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42279558 + 42279559.

It is an arithmetic number, because the mean of its divisors is an integer number (42279559).

Almost surely, 2^84559117 is an apocalyptic number.

It is an amenable number.

84559117 is a deficient number, since it is larger than the sum of its proper divisors (1).

84559117 is an equidigital number, since it uses as much as digits as its factorization.

84559117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 40.

The square root of 84559117 is about 9195.6031341071. The cubic root of 84559117 is about 438.9214579212.

The spelling of 84559117 in words is "eighty-four million, five hundred fifty-nine thousand, one hundred seventeen".