9997273 has 8 divisors (see below), whose sum is σ = 11745216. Its totient is φ = 8389200.

The previous prime is 9997237. The next prime is 9997291. The reversal of 9997273 is 3727999.

9997273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9997273 is a prime.

It is a Duffinian number.

9997273 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9997573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34813 + ... + 35098.

It is an arithmetic number, because the mean of its divisors is an integer number (1468152).

Almost surely, 2^9997273 is an apocalyptic number.

It is an amenable number.

9997273 is a deficient number, since it is larger than the sum of its proper divisors (1747943).

9997273 is a wasteful number, since it uses less digits than its factorization.

9997273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69935.

The product of its digits is 214326, while the sum is 46.

The square root of 9997273 is about 3161.8464542099. The cubic root of 9997273 is about 215.4238834114.

The spelling of 9997273 in words is "nine million, nine hundred ninety-seven thousand, two hundred seventy-three".