939309 has 8 divisors (see below), whose sum is σ = 1431360. Its totient is φ = 536736.

The previous prime is 939299. The next prime is 939317. The reversal of 939309 is 903939.

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

It is not a de Polignac number, because 939309 - 2⁴ = 939293 is a prime.

939309 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 939309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22344 + ... + 22385.

It is an arithmetic number, because the mean of its divisors is an integer number (178920).

2⁹³⁹³⁰⁹ is an apocalyptic number.

It is an amenable number.

939309 is a deficient number, since it is larger than the sum of its proper divisors (492051).

939309 is a wasteful number, since it uses less digits than its factorization.

939309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44739.

The product of its (nonzero) digits is 6561, while the sum is 33.

The square root of 939309 is about 969.1795499287. The cubic root of 939309 is about 97.9346016541.

It can be divided in two parts, 93930 and 9, that added together give a palindrome (93939).

The spelling of 939309 in words is "nine hundred thirty-nine thousand, three hundred nine".