84583217 has 2 divisors, whose sum is σ = 84583218. Its totient is φ = 84583216.

The previous prime is 84583189. The next prime is 84583229. The reversal of 84583217 is 71238548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84070561 + 512656 = 9169^2 + 716^2 .

It is a cyclic number.

It is not a de Polignac number, because 84583217 - 2¹⁰ = 84582193 is a prime.

It is not a weakly prime, because it can be changed into another prime (84583267) 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 as a sum of consecutive naturals, namely, 42291608 + 42291609.

It is an arithmetic number, because the mean of its divisors is an integer number (42291609).

Almost surely, 2^84583217 is an apocalyptic number.

It is an amenable number.

84583217 is a deficient number, since it is larger than the sum of its proper divisors (1).

84583217 is an equidigital number, since it uses as much as digits as its factorization.

84583217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The square root of 84583217 is about 9196.9134496308. The cubic root of 84583217 is about 438.9631526264.

The spelling of 84583217 in words is "eighty-four million, five hundred eighty-three thousand, two hundred seventeen".