99997308 has 24 divisors (see below), whose sum is σ = 259252560.
Its totient is φ = 33332400.
The previous prime is 99997267. The next prime is 99997357. The reversal of 99997308 is 80379999.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462843 + ... + 463058.
It is an arithmetic number, because the mean of its divisors is an integer number (10802190).
Almost surely, 299997308 is an apocalyptic number.
It is an amenable number.
99997308 is an abundant number, since it is smaller than the sum of its proper divisors (159255252).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
99997308 is a wasteful number, since it uses less digits than its factorization.
99997308 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 925914 (or 925906 counting only the distinct ones).
The product of its (nonzero) digits is 1102248, while the sum is 54.
The square root of 99997308 is about 9999.8653990941.
The cubic root of 99997308 is about 464.1547182715.
The spelling of 99997308 in words is "ninety-nine million, nine hundred ninety-seven thousand, three hundred eight".