99997299 has 12 divisors (see below), whose sum is σ = 146597256.
Its totient is φ = 65669472.
The previous prime is 99997267. The next prime is 99997357. The reversal of 99997299 is 99279999.
It is not a de Polignac number, because 99997299 - 25 = 99997267 is a prime.
It is not an unprimeable number, because it can be changed into a prime (99990299) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82314 + ... + 83519.
It is an arithmetic number, because the mean of its divisors is an integer number (12216438).
Almost surely, 299997299 is an apocalyptic number.
99997299 is a deficient number, since it is larger than the sum of its proper divisors (46599957).
99997299 is a wasteful number, since it uses less digits than its factorization.
99997299 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 165906 (or 165903 counting only the distinct ones).
The product of its digits is 7440174, while the sum is 63.
The square root of 99997299 is about 9999.8649490881.
The cubic root of 99997299 is about 464.1547043465.
The spelling of 99997299 in words is "ninety-nine million, nine hundred ninety-seven thousand, two hundred ninety-nine".