9972088999 has 2 divisors, whose sum is σ = 9972089000. Its totient is φ = 9972088998.

The previous prime is 9972088981. The next prime is 9972089051. The reversal of 9972088999 is 9998802799.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9972088999 - 2¹¹ = 9972086951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9972088949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4986044499 + 4986044500.

It is an arithmetic number, because the mean of its divisors is an integer number (4986044500).

Almost surely, 2^9972088999 is an apocalyptic number.

9972088999 is a deficient number, since it is larger than the sum of its proper divisors (1).

9972088999 is an equidigital number, since it uses as much as digits as its factorization.

9972088999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52907904, while the sum is 70.

The square root of 9972088999 is about 99860.3474808695. The cubic root of 9972088999 is about 2152.4284080016.

The spelling of 9972088999 in words is "nine billion, nine hundred seventy-two million, eighty-eight thousand, nine hundred ninety-nine".