9998067722 has 8 divisors (see below), whose sum is σ = 15052853700. Its totient is φ = 4980449824.

The previous prime is 9998067721. The next prime is 9998067749. The reversal of 9998067722 is 2277608999.

It can be written as a sum of positive squares in 2 ways, for example, as 9826955161 + 171112561 = 99131^2 + 13081^2 .

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

It is a super-2 number, since 2×9998067722² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9998067721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9291347 + ... + 9292422.

Almost surely, 2^9998067722 is an apocalyptic number.

9998067722 is a deficient number, since it is larger than the sum of its proper divisors (5054785978).

9998067722 is a wasteful number, since it uses less digits than its factorization.

9998067722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18584040.

The product of its (nonzero) digits is 6858432, while the sum is 59.

The square root of 9998067722 is about 99990.3381432426. The cubic root of 9998067722 is about 2154.2959155347.

The spelling of 9998067722 in words is "nine billion, nine hundred ninety-eight million, sixty-seven thousand, seven hundred twenty-two".