99966899 has 2 divisors, whose sum is σ = 99966900. Its totient is φ = 99966898.

The previous prime is 99966877. The next prime is 99966929. The reversal of 99966899 is 99866999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99966899 - 2¹⁶ = 99901363 is a prime.

It is not a weakly prime, because it can be changed into another prime (99966829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49983449 + 49983450.

It is an arithmetic number, because the mean of its divisors is an integer number (49983450).

Almost surely, 2^99966899 is an apocalyptic number.

99966899 is a deficient number, since it is larger than the sum of its proper divisors (1).

99966899 is an equidigital number, since it uses as much as digits as its factorization.

99966899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17006112, while the sum is 65.

The square root of 99966899 is about 9998.3448130178. The cubic root of 99966899 is about 464.1076639655.

The spelling of 99966899 in words is "ninety-nine million, nine hundred sixty-six thousand, eight hundred ninety-nine".