939969 has 12 divisors (see below), whose sum is σ = 1377792. Its totient is φ = 617400.

The previous prime is 939931. The next prime is 939971. The reversal of 939969 is 969939.

It is not a de Polignac number, because 939969 - 2⁸ = 939713 is a prime.

It is a super-2 number, since 2×939969² = 1767083441922, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 939969.

It is not an unprimeable number, because it can be changed into a prime (939989) 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 11 ways as a sum of consecutive naturals, for example, 97 + ... + 1374.

It is an arithmetic number, because the mean of its divisors is an integer number (114816).

2⁹³⁹⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

939969 is a deficient number, since it is larger than the sum of its proper divisors (437823).

939969 is a wasteful number, since it uses less digits than its factorization.

939969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548 (or 1545 counting only the distinct ones).

The product of its digits is 118098, while the sum is 45.

The square root of 939969 is about 969.5199843221. The cubic root of 939969 is about 97.9575340097.

The spelling of 939969 in words is "nine hundred thirty-nine thousand, nine hundred sixty-nine".