84703709 has 2 divisors, whose sum is σ = 84703710. Its totient is φ = 84703708.

The previous prime is 84703667. The next prime is 84703711. The reversal of 84703709 is 90730748.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55920484 + 28783225 = 7478^2 + 5365^2 .

It is a cyclic number.

It is not a de Polignac number, because 84703709 - 2⁸ = 84703453 is a prime.

It is a Sophie Germain prime.

Together with 84703711, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84703739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42351854 + 42351855.

It is an arithmetic number, because the mean of its divisors is an integer number (42351855).

Almost surely, 2^84703709 is an apocalyptic number.

It is an amenable number.

84703709 is a deficient number, since it is larger than the sum of its proper divisors (1).

84703709 is an equidigital number, since it uses as much as digits as its factorization.

84703709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 84703709 is about 9203.4617943467. The cubic root of 84703709 is about 439.1714936132.

The spelling of 84703709 in words is "eighty-four million, seven hundred three thousand, seven hundred nine".