8216996127 has 4 divisors (see below), whose sum is σ = 10955994840. Its totient is φ = 5477997416.

The previous prime is 8216996113. The next prime is 8216996129. The reversal of 8216996127 is 7216996128.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8216996127 - 2¹⁸ = 8216733983 is a prime.

It is a super-2 number, since 2×8216996127² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8216996127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8216996129) 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, 1369499352 + ... + 1369499357.

It is an arithmetic number, because the mean of its divisors is an integer number (2738998710).

Almost surely, 2^8216996127 is an apocalyptic number.

8216996127 is a deficient number, since it is larger than the sum of its proper divisors (2738998713).

8216996127 is a wasteful number, since it uses less digits than its factorization.

8216996127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738998712.

The product of its digits is 653184, while the sum is 51.

The square root of 8216996127 is about 90647.6482154943. The cubic root of 8216996127 is about 2017.9219330375.

Subtracting from 8216996127 its reverse (7216996128), we obtain a palindrome (999999999).

The spelling of 8216996127 in words is "eight billion, two hundred sixteen million, nine hundred ninety-six thousand, one hundred twenty-seven".