8334039891 has 4 divisors (see below), whose sum is σ = 11112053192. Its totient is φ = 5556026592.

The previous prime is 8334039881. The next prime is 8334039899. The reversal of 8334039891 is 1989304338.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-8334039891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8334039891.

It is not an unprimeable number, because it can be changed into a prime (8334039899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1389006646 + ... + 1389006651.

It is an arithmetic number, because the mean of its divisors is an integer number (2778013298).

Almost surely, 2^8334039891 is an apocalyptic number.

8334039891 is a deficient number, since it is larger than the sum of its proper divisors (2778013301).

8334039891 is a wasteful number, since it uses less digits than its factorization.

8334039891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778013300.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 8334039891 is about 91290.9628112224. The cubic root of 8334039891 is about 2027.4579625911.

The spelling of 8334039891 in words is "eight billion, three hundred thirty-four million, thirty-nine thousand, eight hundred ninety-one".