9922799827 has 4 divisors (see below), whose sum is σ = 10242890176. Its totient is φ = 9602709480.

The previous prime is 9922799813. The next prime is 9922799839. The reversal of 9922799827 is 7289972299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7289972299 = 8597 ⋅847967.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9922799827 is a prime.

It is a super-2 number, since 2×9922799827² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9922799807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160045128 + ... + 160045189.

It is an arithmetic number, because the mean of its divisors is an integer number (2560722544).

Almost surely, 2^9922799827 is an apocalyptic number.

9922799827 is a deficient number, since it is larger than the sum of its proper divisors (320090349).

9922799827 is a wasteful number, since it uses less digits than its factorization.

9922799827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320090348.

The product of its digits is 20575296, while the sum is 64.

The square root of 9922799827 is about 99613.2512620685. The cubic root of 9922799827 is about 2148.8762706737.

The spelling of 9922799827 in words is "nine billion, nine hundred twenty-two million, seven hundred ninety-nine thousand, eight hundred twenty-seven".