8079640223 has 2 divisors, whose sum is σ = 8079640224. Its totient is φ = 8079640222.

The previous prime is 8079640213. The next prime is 8079640367. The reversal of 8079640223 is 3220469708.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8079640223 is a prime.

It is a super-2 number, since 2×8079640223² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8079640213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4039820111 + 4039820112.

It is an arithmetic number, because the mean of its divisors is an integer number (4039820112).

Almost surely, 2^8079640223 is an apocalyptic number.

8079640223 is a deficient number, since it is larger than the sum of its proper divisors (1).

8079640223 is an equidigital number, since it uses as much as digits as its factorization.

8079640223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 8079640223 is about 89886.8189614028. The cubic root of 8079640223 is about 2006.6147834506.

The spelling of 8079640223 in words is "eight billion, seventy-nine million, six hundred forty thousand, two hundred twenty-three".