9922644 has 36 divisors (see below), whose sum is σ = 25339860. Its totient is φ = 3273600.

The previous prime is 9922613. The next prime is 9922651. The reversal of 9922644 is 4462299.

9922644 is a `hidden beast` number, since 9 + 9 + 2 + 2 + 644 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9548100 + 374544 = 3090^2 + 612^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 9922599 and 9922608.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2272 + ... + 5000.

It is an arithmetic number, because the mean of its divisors is an integer number (703885).

Almost surely, 2^9922644 is an apocalyptic number.

It is an amenable number.

9922644 is an abundant number, since it is smaller than the sum of its proper divisors (15417216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9922644 is a wasteful number, since it uses less digits than its factorization.

9922644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840 (or 2835 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 9922644 is about 3150.0228570599. The cubic root of 9922644 is about 214.8865022011.

The spelling of 9922644 in words is "nine million, nine hundred twenty-two thousand, six hundred forty-four".