9998573269 has 2 divisors, whose sum is σ = 9998573270. Its totient is φ = 9998573268.

The previous prime is 9998573209. The next prime is 9998573293. The reversal of 9998573269 is 9623758999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7414071025 + 2584502244 = 86105^2 + 50838^2 .

It is a cyclic number.

It is not a de Polignac number, because 9998573269 - 2⁷ = 9998573141 is a prime.

It is a super-2 number, since 2×9998573269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9998573209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999286634 + 4999286635.

It is an arithmetic number, because the mean of its divisors is an integer number (4999286635).

Almost surely, 2^9998573269 is an apocalyptic number.

It is an amenable number.

9998573269 is a deficient number, since it is larger than the sum of its proper divisors (1).

9998573269 is an equidigital number, since it uses as much as digits as its factorization.

9998573269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66134880, while the sum is 67.

The square root of 9998573269 is about 99992.8660905367. The cubic root of 9998573269 is about 2154.3322252001.

The spelling of 9998573269 in words is "nine billion, nine hundred ninety-eight million, five hundred seventy-three thousand, two hundred sixty-nine".