9999997069 has 2 divisors, whose sum is σ = 9999997070. Its totient is φ = 9999997068.

The previous prime is 9999997043. The next prime is 9999997121. The reversal of 9999997069 is 9607999999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9644222025 + 355775044 = 98205^2 + 18862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9999997069 is a prime.

It is a super-2 number, since 2×9999997069² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9999996986 and 9999997004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9999997169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999998534 + 4999998535.

It is an arithmetic number, because the mean of its divisors is an integer number (4999998535).

Almost surely, 2^9999997069 is an apocalyptic number.

It is an amenable number.

9999997069 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999997069 is an equidigital number, since it uses as much as digits as its factorization.

9999997069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200884698, while the sum is 76.

The square root of 9999997069 is about 99999.9853449989. The cubic root of 9999997069 is about 2154.4344795436.

The spelling of 9999997069 in words is "nine billion, nine hundred ninety-nine million, nine hundred ninety-seven thousand, sixty-nine".