9722247 has 8 divisors (see below), whose sum is σ = 13025280. Its totient is φ = 6450360.

The previous prime is 9722233. The next prime is 9722269. The reversal of 9722247 is 7422279.

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

It is not a de Polignac number, because 9722247 - 2⁸ = 9721991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9722287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7047 + ... + 8312.

It is an arithmetic number, because the mean of its divisors is an integer number (1628160).

Almost surely, 2^9722247 is an apocalyptic number.

9722247 is a deficient number, since it is larger than the sum of its proper divisors (3303033).

9722247 is a wasteful number, since it uses less digits than its factorization.

9722247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15573.

The product of its digits is 14112, while the sum is 33.

The square root of 9722247 is about 3118.0517955929. The cubic root of 9722247 is about 213.4300421448.

Subtracting from 9722247 its reverse (7422279), we obtain a cube (2299968 = 132³).

The spelling of 9722247 in words is "nine million, seven hundred twenty-two thousand, two hundred forty-seven".