8397776111 has 4 divisors (see below), whose sum is σ = 8402657424. Its totient is φ = 8392894800.

The previous prime is 8397776081. The next prime is 8397776159. The reversal of 8397776111 is 1116777938.

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 8397776111 - 2¹⁸ = 8397513967 is a prime.

It is a super-2 number, since 2×8397776111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8397776111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8397776011) 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, 2438075 + ... + 2441516.

It is an arithmetic number, because the mean of its divisors is an integer number (2100664356).

Almost surely, 2^8397776111 is an apocalyptic number.

8397776111 is a deficient number, since it is larger than the sum of its proper divisors (4881313).

8397776111 is a wasteful number, since it uses less digits than its factorization.

8397776111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4881312.

The product of its digits is 444528, while the sum is 50.

The square root of 8397776111 is about 91639.3807868648. The cubic root of 8397776111 is about 2032.6133047264.

The spelling of 8397776111 in words is "eight billion, three hundred ninety-seven million, seven hundred seventy-six thousand, one hundred eleven".