84798017 has 2 divisors, whose sum is σ = 84798018. Its totient is φ = 84798016.

The previous prime is 84797983. The next prime is 84798031. The reversal of 84798017 is 71089748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76755121 + 8042896 = 8761^2 + 2836^2 .

It is a cyclic number.

It is not a de Polignac number, because 84798017 - 2⁶ = 84797953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84798067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42399008 + 42399009.

It is an arithmetic number, because the mean of its divisors is an integer number (42399009).

Almost surely, 2^84798017 is an apocalyptic number.

It is an amenable number.

84798017 is a deficient number, since it is larger than the sum of its proper divisors (1).

84798017 is an equidigital number, since it uses as much as digits as its factorization.

84798017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 84798017 is about 9208.5838759279. The cubic root of 84798017 is about 439.3344224232.

The spelling of 84798017 in words is "eighty-four million, seven hundred ninety-eight thousand, seventeen".