8091989308 has 24 divisors (see below), whose sum is σ = 15261577632. Its totient is φ = 3731999424.

The previous prime is 8091989267. The next prime is 8091989333. The reversal of 8091989308 is 8039891908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14166 + ... + 128002.

It is an arithmetic number, because the mean of its divisors is an integer number (635899068).

Almost surely, 2^8091989308 is an apocalyptic number.

It is an amenable number.

8091989308 is a deficient number, since it is larger than the sum of its proper divisors (7169588324).

8091989308 is a wasteful number, since it uses less digits than its factorization.

8091989308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115221 (or 115219 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 55.

The square root of 8091989308 is about 89955.4851468214. The cubic root of 8091989308 is about 2007.6365798785.

The spelling of 8091989308 in words is "eight billion, ninety-one million, nine hundred eighty-nine thousand, three hundred eight".