9997320 has 32 divisors (see below), whose sum is σ = 29992320.
Its totient is φ = 2665920.
The previous prime is 9997319. The next prime is 9997321. The reversal of 9997320 is 237999.
It is an interprime number because it is at equal distance from previous prime (9997319) and next prime (9997321).
It is a nialpdrome in base 10.
It is not an unprimeable number, because it can be changed into a prime (9997321) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41536 + ... + 41775.
It is an arithmetic number, because the mean of its divisors is an integer number (937260).
Almost surely, 29997320 is an apocalyptic number.
It is an amenable number.
9997320 is an abundant number, since it is smaller than the sum of its proper divisors (19995000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
9997320 is a wasteful number, since it uses less digits than its factorization.
9997320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 83325 (or 83321 counting only the distinct ones).
The product of its (nonzero) digits is 30618, while the sum is 39.
The square root of 9997320 is about 3161.8538865672.
The cubic root of 9997320 is about 215.4242210004.
The spelling of 9997320 in words is "nine million, nine hundred ninety-seven thousand, three hundred twenty".