98697089609 has 2 divisors, whose sum is σ = 98697089610. Its totient is φ = 98697089608.

The previous prime is 98697089581. The next prime is 98697089639. The reversal of 98697089609 is 90698079689.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90328499209 + 8368590400 = 300547^2 + 91480^2 .

It is a cyclic number.

It is not a de Polignac number, because 98697089609 - 2¹⁶ = 98697024073 is a prime.

It is a super-2 number, since 2×98697089609² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (98697089639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49348544804 + 49348544805.

It is an arithmetic number, because the mean of its divisors is an integer number (49348544805).

Almost surely, 2^98697089609 is an apocalyptic number.

It is an amenable number.

98697089609 is a deficient number, since it is larger than the sum of its proper divisors (1).

98697089609 is an equidigital number, since it uses as much as digits as its factorization.

98697089609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105815808, while the sum is 71.

The spelling of 98697089609 in words is "ninety-eight billion, six hundred ninety-seven million, eighty-nine thousand, six hundred nine".