939937 has 4 divisors (see below), whose sum is σ = 961840. Its totient is φ = 918036.

The previous prime is 939931. The next prime is 939971. The reversal of 939937 is 739939.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 739939 = 31 ⋅23869.

It is a cyclic number.

It is not a de Polignac number, because 939937 - 2¹⁵ = 907169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 939937.

It is not an unprimeable number, because it can be changed into a prime (939931) 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 3 ways as a sum of consecutive naturals, for example, 10887 + ... + 10972.

It is an arithmetic number, because the mean of its divisors is an integer number (240460).

2⁹³⁹⁹³⁷ is an apocalyptic number.

It is an amenable number.

939937 is a deficient number, since it is larger than the sum of its proper divisors (21903).

939937 is a wasteful number, since it uses less digits than its factorization.

939937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21902.

The product of its digits is 45927, while the sum is 40.

The square root of 939937 is about 969.5034811696. The cubic root of 939937 is about 97.9564223856.

The spelling of 939937 in words is "nine hundred thirty-nine thousand, nine hundred thirty-seven".