8939319443 has 8 divisors (see below), whose sum is σ = 9410679120. Its totient is φ = 8468046720.

The previous prime is 8939319439. The next prime is 8939319461. The reversal of 8939319443 is 3449139398.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8939319443 - 2² = 8939319439 is a prime.

It is a super-2 number, since 2×8939319443² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8939319343) 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, 376871 + ... + 399887.

It is an arithmetic number, because the mean of its divisors is an integer number (1176334890).

Almost surely, 2^8939319443 is an apocalyptic number.

8939319443 is a deficient number, since it is larger than the sum of its proper divisors (471359677).

8939319443 is a wasteful number, since it uses less digits than its factorization.

8939319443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43477.

The product of its digits is 2519424, while the sum is 53.

The square root of 8939319443 is about 94547.9742934771. The cubic root of 8939319443 is about 2075.3984384534.

The spelling of 8939319443 in words is "eight billion, nine hundred thirty-nine million, three hundred nineteen thousand, four hundred forty-three".