839109469 has 6 divisors (see below), whose sum is σ = 922327070. Its totient is φ = 762826680.

The previous prime is 839109451. The next prime is 839109503. The reversal of 839109469 is 964901938.

839109469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 731053444 + 108056025 = 27038^2 + 10395^2 .

It is not a de Polignac number, because 839109469 - 2⁹ = 839108957 is a prime.

It is a super-2 number, since 2×839109469² = 1408209401930923922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839109419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3467274 + ... + 3467515.

Almost surely, 2^839109469 is an apocalyptic number.

It is an amenable number.

839109469 is a deficient number, since it is larger than the sum of its proper divisors (83217601).

839109469 is a wasteful number, since it uses less digits than its factorization.

839109469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6934811 (or 6934800 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 839109469 is about 28967.3862990778. The cubic root of 839109469 is about 943.2052454066.

The spelling of 839109469 in words is "eight hundred thirty-nine million, one hundred nine thousand, four hundred sixty-nine".