939879 has 12 divisors (see below), whose sum is σ = 1437696. Its totient is φ = 589632.

The previous prime is 939871. The next prime is 939881. The reversal of 939879 is 978939.

It is a happy number.

It is not a de Polignac number, because 939879 - 2³ = 939871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939871) 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 11 ways as a sum of consecutive naturals, for example, 2919 + ... + 3224.

It is an arithmetic number, because the mean of its divisors is an integer number (119808).

2⁹³⁹⁸⁷⁹ is an apocalyptic number.

939879 is a deficient number, since it is larger than the sum of its proper divisors (497817).

939879 is a wasteful number, since it uses less digits than its factorization.

939879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6166 (or 6163 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 939879 is about 969.4735684896. The cubic root of 939879 is about 97.9544075026.

Subtracting 939879 from its reverse (978939), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 939879 in words is "nine hundred thirty-nine thousand, eight hundred seventy-nine".