9988000873 has 2 divisors, whose sum is σ = 9988000874. Its totient is φ = 9988000872.

The previous prime is 9988000829. The next prime is 9988000901. The reversal of 9988000873 is 3780008899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9782594649 + 205406224 = 98907^2 + 14332^2 .

It is a cyclic number.

It is not a de Polignac number, because 9988000873 - 2¹³ = 9987992681 is a prime.

It is a super-2 number, since 2×9988000873² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9988000873.

It is not a weakly prime, because it can be changed into another prime (9988000073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4994000436 + 4994000437.

It is an arithmetic number, because the mean of its divisors is an integer number (4994000437).

Almost surely, 2^9988000873 is an apocalyptic number.

It is an amenable number.

9988000873 is a deficient number, since it is larger than the sum of its proper divisors (1).

9988000873 is an equidigital number, since it uses as much as digits as its factorization.

9988000873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 9988000873 is about 99939.9863568132. The cubic root of 9988000873 is about 2153.5726339606.

The spelling of 9988000873 in words is "nine billion, nine hundred eighty-eight million, eight hundred seventy-three", and thus it is an aban number.