9907722 has 36 divisors (see below), whose sum is σ = 23600850. Its totient is φ = 3001680.

The previous prime is 9907717. The next prime is 9907769. The reversal of 9907722 is 2277099.

It can be written as a sum of positive squares in only one way, i.e., 7502121 + 2405601 = 2739^2 + 1551^2 .

It is a super-3 number, since 3×9907722³ (a number of 22 digits) contains 333 as substring.

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 17 ways as a sum of consecutive naturals, for example, 97 + ... + 4452.

Almost surely, 2^9907722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9907722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11800425).

9907722 is an abundant number, since it is smaller than the sum of its proper divisors (13693128).

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

9907722 is a wasteful number, since it uses less digits than its factorization.

9907722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4579 (or 4565 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 9907722 is about 3147.6534116704. The cubic root of 9907722 is about 214.7787303513.

It can be divided in two parts, 99077 and 22, that added together give a palindrome (99099).

The spelling of 9907722 in words is "nine million, nine hundred seven thousand, seven hundred twenty-two".