8608579891 has 2 divisors, whose sum is σ = 8608579892. Its totient is φ = 8608579890.

The previous prime is 8608579841. The next prime is 8608579933. The reversal of 8608579891 is 1989758068.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8608579891 is a prime.

It is not a weakly prime, because it can be changed into another prime (8608579841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4304289945 + 4304289946.

It is an arithmetic number, because the mean of its divisors is an integer number (4304289946).

Almost surely, 2^8608579891 is an apocalyptic number.

8608579891 is a deficient number, since it is larger than the sum of its proper divisors (1).

8608579891 is an equidigital number, since it uses as much as digits as its factorization.

8608579891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 61.

The square root of 8608579891 is about 92782.4330948483. The cubic root of 8608579891 is about 2049.4807243950.

The spelling of 8608579891 in words is "eight billion, six hundred eight million, five hundred seventy-nine thousand, eight hundred ninety-one".