939109 has 2 divisors, whose sum is σ = 939110. Its totient is φ = 939108.

The previous prime is 939091. The next prime is 939119. The reversal of 939109 is 901939.

939109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (939091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 567009 + 372100 = 753^2 + 610^2 .

It is a cyclic number.

It is not a de Polignac number, because 939109 - 2⁷ = 938981 is a prime.

It is a Chen prime.

It is an Ulam number.

939109 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (939119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469554 + 469555.

It is an arithmetic number, because the mean of its divisors is an integer number (469555).

2⁹³⁹¹⁰⁹ is an apocalyptic number.

It is an amenable number.

939109 is a deficient number, since it is larger than the sum of its proper divisors (1).

939109 is an equidigital number, since it uses as much as digits as its factorization.

939109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2187, while the sum is 31.

The square root of 939109 is about 969.0763643800. The cubic root of 939109 is about 97.9276503347.

The spelling of 939109 in words is "nine hundred thirty-nine thousand, one hundred nine".