99234209 has 2 divisors, whose sum is σ = 99234210. Its totient is φ = 99234208.

The previous prime is 99234139. The next prime is 99234263. The reversal of 99234209 is 90243299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98704225 + 529984 = 9935^2 + 728^2 .

It is a cyclic number.

It is not a de Polignac number, because 99234209 - 2¹⁶ = 99168673 is a prime.

It is a Chen prime.

It is equal to p_5719862 and since 99234209 and 5719862 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (99234809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49617104 + 49617105.

It is an arithmetic number, because the mean of its divisors is an integer number (49617105).

Almost surely, 2^99234209 is an apocalyptic number.

It is an amenable number.

99234209 is a deficient number, since it is larger than the sum of its proper divisors (1).

99234209 is an equidigital number, since it uses as much as digits as its factorization.

99234209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 99234209 is about 9961.6368634878. The cubic root of 99234209 is about 462.9710170053.

The spelling of 99234209 in words is "ninety-nine million, two hundred thirty-four thousand, two hundred nine".