899000099 has 2 divisors, whose sum is σ = 899000100. Its totient is φ = 899000098.

The previous prime is 899000077. The next prime is 899000159. The reversal of 899000099 is 990000998.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 899000099 - 2²⁴ = 882222883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (899000059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449500049 + 449500050.

It is an arithmetic number, because the mean of its divisors is an integer number (449500050).

Almost surely, 2^899000099 is an apocalyptic number.

899000099 is a deficient number, since it is larger than the sum of its proper divisors (1).

899000099 is an equidigital number, since it uses as much as digits as its factorization.

899000099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 44.

The square root of 899000099 is about 29983.3303520473. The cubic root of 899000099 is about 965.1316988501.

The spelling of 899000099 in words is "eight hundred ninety-nine million, ninety-nine", and thus it is an aban number.