938109 has 4 divisors (see below), whose sum is σ = 1250816. Its totient is φ = 625404.

The previous prime is 938107. The next prime is 938117. The reversal of 938109 is 901839.

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.

It is not a de Polignac number, because 938109 - 2¹ = 938107 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938107) 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, 156349 + ... + 156354.

It is an arithmetic number, because the mean of its divisors is an integer number (312704).

2⁹³⁸¹⁰⁹ is an apocalyptic number.

It is an amenable number.

938109 is a deficient number, since it is larger than the sum of its proper divisors (312707).

938109 is a wasteful number, since it uses less digits than its factorization.

938109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312706.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 938109 is about 968.5602717436. The cubic root of 938109 is about 97.8928789255.

The spelling of 938109 in words is "nine hundred thirty-eight thousand, one hundred nine".