84005297 has 2 divisors, whose sum is σ = 84005298. Its totient is φ = 84005296.

The previous prime is 84005291. The next prime is 84005323. The reversal of 84005297 is 79250048.

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., 53523856 + 30481441 = 7316^2 + 5521^2 .

It is a cyclic number.

It is not a de Polignac number, because 84005297 - 2¹⁰ = 84004273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84005291) 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, 42002648 + 42002649.

It is an arithmetic number, because the mean of its divisors is an integer number (42002649).

Almost surely, 2^84005297 is an apocalyptic number.

It is an amenable number.

84005297 is a deficient number, since it is larger than the sum of its proper divisors (1).

84005297 is an equidigital number, since it uses as much as digits as its factorization.

84005297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 84005297 is about 9165.4403603973. The cubic root of 84005297 is about 437.9611194750.

The spelling of 84005297 in words is "eighty-four million, five thousand, two hundred ninety-seven".