9872899 has 2 divisors, whose sum is σ = 9872900. Its totient is φ = 9872898.

The previous prime is 9872887. The next prime is 9872921. The reversal of 9872899 is 9982789.

9872899 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9872899 - 2¹¹ = 9870851 is a prime.

9872899 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9872809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4936449 + 4936450.

It is an arithmetic number, because the mean of its divisors is an integer number (4936450).

Almost surely, 2^9872899 is an apocalyptic number.

9872899 is a deficient number, since it is larger than the sum of its proper divisors (1).

9872899 is an equidigital number, since it uses as much as digits as its factorization.

9872899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 52.

The square root of 9872899 is about 3142.1169615404. The cubic root of 9872899 is about 214.5268049882.

The spelling of 9872899 in words is "nine million, eight hundred seventy-two thousand, eight hundred ninety-nine".