84141217 has 2 divisors, whose sum is σ = 84141218. Its totient is φ = 84141216.

The previous prime is 84141203. The next prime is 84141221. The reversal of 84141217 is 71214148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72743841 + 11397376 = 8529^2 + 3376^2 .

It is a cyclic number.

It is not a de Polignac number, because 84141217 - 2¹¹ = 84139169 is a prime.

It is not a weakly prime, because it can be changed into another prime (84141227) 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, 42070608 + 42070609.

It is an arithmetic number, because the mean of its divisors is an integer number (42070609).

Almost surely, 2^84141217 is an apocalyptic number.

It is an amenable number.

84141217 is a deficient number, since it is larger than the sum of its proper divisors (1).

84141217 is an equidigital number, since it uses as much as digits as its factorization.

84141217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 28.

The square root of 84141217 is about 9172.8521736699. The cubic root of 84141217 is about 438.1971982351.

It can be divided in two parts, 8 and 4141217, that added together give a square (4141225 = 2035²).

The spelling of 84141217 in words is "eighty-four million, one hundred forty-one thousand, two hundred seventeen".