939943 has 4 divisors (see below), whose sum is σ = 954040. Its totient is φ = 925848.

The previous prime is 939931. The next prime is 939971. The reversal of 939943 is 349939.

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 939943 - 2⁹ = 939431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6948 + ... + 7081.

It is an arithmetic number, because the mean of its divisors is an integer number (238510).

2⁹³⁹⁹⁴³ is an apocalyptic number.

939943 is a deficient number, since it is larger than the sum of its proper divisors (14097).

939943 is a wasteful number, since it uses less digits than its factorization.

939943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14096.

The product of its digits is 26244, while the sum is 37.

The square root of 939943 is about 969.5065755321. The cubic root of 939943 is about 97.9566308171.

The spelling of 939943 in words is "nine hundred thirty-nine thousand, nine hundred forty-three".