84480017 has 2 divisors, whose sum is σ = 84480018. Its totient is φ = 84480016.

The previous prime is 84480013. The next prime is 84480029. The reversal of 84480017 is 71008448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43507216 + 40972801 = 6596^2 + 6401^2 .

It is a cyclic number.

It is not a de Polignac number, because 84480017 - 2² = 84480013 is a prime.

It is not a weakly prime, because it can be changed into another prime (84480013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42240008 + 42240009.

It is an arithmetic number, because the mean of its divisors is an integer number (42240009).

Almost surely, 2^84480017 is an apocalyptic number.

It is an amenable number.

84480017 is a deficient number, since it is larger than the sum of its proper divisors (1).

84480017 is an equidigital number, since it uses as much as digits as its factorization.

84480017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 84480017 is about 9191.3011592483. The cubic root of 84480017 is about 438.7845536270.

The spelling of 84480017 in words is "eighty-four million, four hundred eighty thousand, seventeen".