9789698077 has 2 divisors, whose sum is σ = 9789698078. Its totient is φ = 9789698076.

The previous prime is 9789698063. The next prime is 9789698101. The reversal of 9789698077 is 7708969879.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9460674756 + 329023321 = 97266^2 + 18139^2 .

It is a cyclic number.

It is not a de Polignac number, because 9789698077 - 2¹⁵ = 9789665309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9789697997 and 9789698015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9789698777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4894849038 + 4894849039.

It is an arithmetic number, because the mean of its divisors is an integer number (4894849039).

Almost surely, 2^9789698077 is an apocalyptic number.

It is an amenable number.

9789698077 is a deficient number, since it is larger than the sum of its proper divisors (1).

9789698077 is an equidigital number, since it uses as much as digits as its factorization.

9789698077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96018048, while the sum is 70.

The square root of 9789698077 is about 98942.9031158880. The cubic root of 9789698077 is about 2139.2248391310.

The spelling of 9789698077 in words is "nine billion, seven hundred eighty-nine million, six hundred ninety-eight thousand, seventy-seven".