89401701709 has 2 divisors, whose sum is σ = 89401701710. Its totient is φ = 89401701708.

The previous prime is 89401701667. The next prime is 89401701721. The reversal of 89401701709 is 90710710498.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87921145225 + 1480556484 = 296515^2 + 38478^2 .

It is a cyclic number.

It is not a de Polignac number, because 89401701709 - 2⁹ = 89401701197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89401701409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44700850854 + 44700850855.

It is an arithmetic number, because the mean of its divisors is an integer number (44700850855).

Almost surely, 2^89401701709 is an apocalyptic number.

It is an amenable number.

89401701709 is a deficient number, since it is larger than the sum of its proper divisors (1).

89401701709 is an equidigital number, since it uses as much as digits as its factorization.

89401701709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 46.

The spelling of 89401701709 in words is "eighty-nine billion, four hundred one million, seven hundred one thousand, seven hundred nine".