8309243091 has 8 divisors (see below), whose sum is σ = 11079428560. Its totient is φ = 5539276512.

The previous prime is 8309243087. The next prime is 8309243101. The reversal of 8309243091 is 1903429038.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8309243091 - 2² = 8309243087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8309243021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84345 + ... + 154053.

It is an arithmetic number, because the mean of its divisors is an integer number (1384928570).

Almost surely, 2^8309243091 is an apocalyptic number.

8309243091 is a deficient number, since it is larger than the sum of its proper divisors (2770185469).

8309243091 is a wasteful number, since it uses less digits than its factorization.

8309243091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109445.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 8309243091 is about 91155.0497284709. The cubic root of 8309243091 is about 2025.4451566987.

The spelling of 8309243091 in words is "eight billion, three hundred nine million, two hundred forty-three thousand, ninety-one".