9922645 has 16 divisors (see below), whose sum is σ = 12737088. Its totient is φ = 7394560.

The previous prime is 9922613. The next prime is 9922651. The reversal of 9922645 is 5462299.

9922645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9922645 - 2⁵ = 9922613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8550 + ... + 9640.

It is an arithmetic number, because the mean of its divisors is an integer number (796068).

Almost surely, 2^9922645 is an apocalyptic number.

9922645 is the 1819-th octagonal number.

It is an amenable number.

9922645 is a deficient number, since it is larger than the sum of its proper divisors (2814443).

9922645 is a wasteful number, since it uses less digits than its factorization.

9922645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220.

The product of its digits is 38880, while the sum is 37.

The square root of 9922645 is about 3150.0230157889. The cubic root of 9922645 is about 214.8865094198.

The spelling of 9922645 in words is "nine million, nine hundred twenty-two thousand, six hundred forty-five".