9922731 has 32 divisors (see below), whose sum is σ = 17149440. Its totient is φ = 4955904.

The previous prime is 9922721. The next prime is 9922739. The reversal of 9922731 is 1372299.

It is not a de Polignac number, because 9922731 - 2⁶ = 9922667 is a prime.

It is a super-2 number, since 2×9922731² = 196921180996722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9922692 and 9922701.

It is not an unprimeable number, because it can be changed into a prime (9922739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4231 + ... + 6143.

It is an arithmetic number, because the mean of its divisors is an integer number (535920).

Almost surely, 2^9922731 is an apocalyptic number.

9922731 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

9922731 is a deficient number, since it is larger than the sum of its proper divisors (7226709).

9922731 is a wasteful number, since it uses less digits than its factorization.

9922731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955.

The product of its digits is 6804, while the sum is 33.

The square root of 9922731 is about 3150.0366664533. The cubic root of 9922731 is about 214.8871302283.

The spelling of 9922731 in words is "nine million, nine hundred twenty-two thousand, seven hundred thirty-one".