99859297 has 2 divisors, whose sum is σ = 99859298. Its totient is φ = 99859296.

The previous prime is 99859289. The next prime is 99859303. The reversal of 99859297 is 79295899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96904336 + 2954961 = 9844^2 + 1719^2 .

It is an emirp because it is prime and its reverse (79295899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99859297 - 2³ = 99859289 is a prime.

It is not a weakly prime, because it can be changed into another prime (99859237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49929648 + 49929649.

It is an arithmetic number, because the mean of its divisors is an integer number (49929649).

Almost surely, 2^99859297 is an apocalyptic number.

It is an amenable number.

99859297 is a deficient number, since it is larger than the sum of its proper divisors (1).

99859297 is an equidigital number, since it uses as much as digits as its factorization.

99859297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 58.

The square root of 99859297 is about 9992.9623735907. The cubic root of 99859297 is about 463.9410860223.

The spelling of 99859297 in words is "ninety-nine million, eight hundred fifty-nine thousand, two hundred ninety-seven".