8279428211 has 2 divisors, whose sum is σ = 8279428212. Its totient is φ = 8279428210.

The previous prime is 8279428207. The next prime is 8279428259. The reversal of 8279428211 is 1128249728.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8279428211 - 2² = 8279428207 is a prime.

It is a super-2 number, since 2×8279428211² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (8279428411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4139714105 + 4139714106.

It is an arithmetic number, because the mean of its divisors is an integer number (4139714106).

Almost surely, 2^8279428211 is an apocalyptic number.

8279428211 is a deficient number, since it is larger than the sum of its proper divisors (1).

8279428211 is an equidigital number, since it uses as much as digits as its factorization.

8279428211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 44.

The square root of 8279428211 is about 90991.3633868622. The cubic root of 8279428211 is about 2023.0197141052.

The spelling of 8279428211 in words is "eight billion, two hundred seventy-nine million, four hundred twenty-eight thousand, two hundred eleven".