8873990999 has 2 divisors, whose sum is σ = 8873991000. Its totient is φ = 8873990998.

The previous prime is 8873990989. The next prime is 8873991001. The reversal of 8873990999 is 9990993788.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8873990999 is a prime.

Together with 8873991001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8873990929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4436995499 + 4436995500.

It is an arithmetic number, because the mean of its divisors is an integer number (4436995500).

Almost surely, 2^8873990999 is an apocalyptic number.

8873990999 is a deficient number, since it is larger than the sum of its proper divisors (1).

8873990999 is an equidigital number, since it uses as much as digits as its factorization.

8873990999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79361856, while the sum is 71.

The square root of 8873990999 is about 94201.8630335940. The cubic root of 8873990999 is about 2070.3304099678.

The spelling of 8873990999 in words is "eight billion, eight hundred seventy-three million, nine hundred ninety thousand, nine hundred ninety-nine".