8991303343 has 4 divisors (see below), whose sum is σ = 9808694568. Its totient is φ = 8173912120.

The previous prime is 8991303337. The next prime is 8991303379. The reversal of 8991303343 is 3433031998.

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

It is not a de Polignac number, because 8991303343 - 2²⁹ = 8454432431 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 8991303343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8991303323) 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, 408695596 + ... + 408695617.

It is an arithmetic number, because the mean of its divisors is an integer number (2452173642).

Almost surely, 2^8991303343 is an apocalyptic number.

8991303343 is a deficient number, since it is larger than the sum of its proper divisors (817391225).

8991303343 is a wasteful number, since it uses less digits than its factorization.

8991303343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817391224.

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 8991303343 is about 94822.4833201493. The cubic root of 8991303343 is about 2079.4136154460.

The spelling of 8991303343 in words is "eight billion, nine hundred ninety-one million, three hundred three thousand, three hundred forty-three".