939947443 has 2 divisors, whose sum is σ = 939947444. Its totient is φ = 939947442.

The previous prime is 939947441. The next prime is 939947471. The reversal of 939947443 is 344749939.

939947443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (344749939) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 939947443 - 2¹ = 939947441 is a prime.

Together with 939947441, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (939947441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469973721 + 469973722.

It is an arithmetic number, because the mean of its divisors is an integer number (469973722).

Almost surely, 2^939947443 is an apocalyptic number.

939947443 is a deficient number, since it is larger than the sum of its proper divisors (1).

939947443 is an equidigital number, since it uses as much as digits as its factorization.

939947443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2939328, while the sum is 52.

The square root of 939947443 is about 30658.5623113674. The cubic root of 939947443 is about 979.5678515997.

The spelling of 939947443 in words is "nine hundred thirty-nine million, nine hundred forty-seven thousand, four hundred forty-three".