84401717 has 2 divisors, whose sum is σ = 84401718. Its totient is φ = 84401716.

The previous prime is 84401711. The next prime is 84401731. The reversal of 84401717 is 71710448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65383396 + 19018321 = 8086^2 + 4361^2 .

It is a cyclic number.

It is not a de Polignac number, because 84401717 - 2¹⁶ = 84336181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84401711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42200858 + 42200859.

It is an arithmetic number, because the mean of its divisors is an integer number (42200859).

Almost surely, 2^84401717 is an apocalyptic number.

It is an amenable number.

84401717 is a deficient number, since it is larger than the sum of its proper divisors (1).

84401717 is an equidigital number, since it uses as much as digits as its factorization.

84401717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 84401717 is about 9187.0407096083. The cubic root of 84401717 is about 438.6489497617.

The spelling of 84401717 in words is "eighty-four million, four hundred one thousand, seven hundred seventeen".