939429 has 6 divisors (see below), whose sum is σ = 1356966. Its totient is φ = 626280.

The previous prime is 939413. The next prime is 939431. The reversal of 939429 is 924939.

It can be written as a sum of positive squares in only one way, i.e., 864900 + 74529 = 930^2 + 273^2 .

It is not a de Polignac number, because 939429 - 2⁴ = 939413 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 939393 and 939402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939439) 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 5 ways as a sum of consecutive naturals, for example, 52182 + ... + 52199.

It is an arithmetic number, because the mean of its divisors is an integer number (226161).

2⁹³⁹⁴²⁹ is an apocalyptic number.

It is an amenable number.

939429 is a deficient number, since it is larger than the sum of its proper divisors (417537).

939429 is a wasteful number, since it uses less digits than its factorization.

939429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104387 (or 104384 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 939429 is about 969.2414559850. The cubic root of 939429 is about 97.9387719721.

The spelling of 939429 in words is "nine hundred thirty-nine thousand, four hundred twenty-nine".