9891354347 has 4 divisors (see below), whose sum is σ = 11304404976. Its totient is φ = 8478303720.

The previous prime is 9891354329. The next prime is 9891354353. The reversal of 9891354347 is 7434531989.

9891354347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9891354347 - 2⁶ = 9891354283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9891354367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 706525304 + ... + 706525317.

It is an arithmetic number, because the mean of its divisors is an integer number (2826101244).

Almost surely, 2^9891354347 is an apocalyptic number.

9891354347 is a deficient number, since it is larger than the sum of its proper divisors (1413050629).

9891354347 is a wasteful number, since it uses less digits than its factorization.

9891354347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413050628.

The product of its digits is 3265920, while the sum is 53.

The square root of 9891354347 is about 99455.2881801667. The cubic root of 9891354347 is about 2146.6039297948.

The spelling of 9891354347 in words is "nine billion, eight hundred ninety-one million, three hundred fifty-four thousand, three hundred forty-seven".