999332899 has 2 divisors, whose sum is σ = 999332900. Its totient is φ = 999332898.

The previous prime is 999332849. The next prime is 999332903. The reversal of 999332899 is 998233999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999332899 - 2⁹ = 999332387 is a prime.

It is not a weakly prime, because it can be changed into another prime (999332849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499666449 + 499666450.

It is an arithmetic number, because the mean of its divisors is an integer number (499666450).

Almost surely, 2^999332899 is an apocalyptic number.

999332899 is a deficient number, since it is larger than the sum of its proper divisors (1).

999332899 is an equidigital number, since it uses as much as digits as its factorization.

999332899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8503056, while the sum is 61.

The square root of 999332899 is about 31612.2270490391. The cubic root of 999332899 is about 999.7775835346. Note that the first 3 decimals are identical.

The spelling of 999332899 in words is "nine hundred ninety-nine million, three hundred thirty-two thousand, eight hundred ninety-nine".