99321029 has 2 divisors, whose sum is σ = 99321030. Its totient is φ = 99321028.

The previous prime is 99321023. The next prime is 99321031. The reversal of 99321029 is 92012399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76300225 + 23020804 = 8735^2 + 4798^2 .

It is a cyclic number.

It is not a de Polignac number, because 99321029 - 2²⁰ = 98272453 is a prime.

Together with 99321031, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99321029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99321023) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49660514 + 49660515.

It is an arithmetic number, because the mean of its divisors is an integer number (49660515).

Almost surely, 2^99321029 is an apocalyptic number.

It is an amenable number.

99321029 is a deficient number, since it is larger than the sum of its proper divisors (1).

99321029 is an equidigital number, since it uses as much as digits as its factorization.

99321029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 99321029 is about 9965.9936283343. The cubic root of 99321029 is about 463.1059954150.

It can be divided in two parts, 993 and 21029, that added together give a palindrome (22022).

The spelling of 99321029 in words is "ninety-nine million, three hundred twenty-one thousand, twenty-nine".