9997473 has 8 divisors (see below), whose sum is σ = 13548736. Its totient is φ = 6555600.

The previous prime is 9997451. The next prime is 9997483. The reversal of 9997473 is 3747999.

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

It is not a de Polignac number, because 9997473 - 2⁵ = 9997441 is a prime.

It is an Ulam number.

It is a Duffinian number.

9997473 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9997483) 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, 27133 + ... + 27498.

It is an arithmetic number, because the mean of its divisors is an integer number (1693592).

Almost surely, 2^9997473 is an apocalyptic number.

It is an amenable number.

9997473 is a deficient number, since it is larger than the sum of its proper divisors (3551263).

9997473 is a wasteful number, since it uses less digits than its factorization.

9997473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54695.

The product of its digits is 428652, while the sum is 48.

The square root of 9997473 is about 3161.8780811410. The cubic root of 9997473 is about 215.4253199528.

The spelling of 9997473 in words is "nine million, nine hundred ninety-seven thousand, four hundred seventy-three".