9992247 has 8 divisors (see below), whose sum is σ = 13606656. Its totient is φ = 6519672.

The previous prime is 9992237. The next prime is 9992263. The reversal of 9992247 is 7422999.

9992247 is digitally balanced in base 2 and base 4, because in such bases 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 not a de Polignac number, because 9992247 - 2⁴ = 9992231 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 9992199 and 9992208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9992207) 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, 35293 + ... + 35574.

It is an arithmetic number, because the mean of its divisors is an integer number (1700832).

Almost surely, 2^9992247 is an apocalyptic number.

9992247 is a deficient number, since it is larger than the sum of its proper divisors (3614409).

9992247 is a wasteful number, since it uses less digits than its factorization.

9992247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70917.

The product of its digits is 81648, while the sum is 42.

The square root of 9992247 is about 3161.0515655395. The cubic root of 9992247 is about 215.3877768342.

The spelling of 9992247 in words is "nine million, nine hundred ninety-two thousand, two hundred forty-seven".