939390 has 32 divisors (see below), whose sum is σ = 2280096. Its totient is φ = 247680.

The previous prime is 939377. The next prime is 939391. The reversal of 939390 is 93939.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939391) by changing a digit.

939390 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 15 ways as a sum of consecutive naturals, for example, 5100 + ... + 5280.

It is an arithmetic number, because the mean of its divisors is an integer number (71253).

2⁹³⁹³⁹⁰ is an apocalyptic number.

939390 is an abundant number, since it is smaller than the sum of its proper divisors (1340706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

939390 is a wasteful number, since it uses less digits than its factorization.

939390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364.

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

The square root of 939390 is about 969.2213369504. The cubic root of 939390 is about 97.9374166577.

The spelling of 939390 in words is "nine hundred thirty-nine thousand, three hundred ninety".