839425 has 6 divisors (see below), whose sum is σ = 1040918. Its totient is φ = 671520.

The previous prime is 839413. The next prime is 839429. The reversal of 839425 is 524938.

It can be written as a sum of positive squares in 3 ways, for example, as 104976 + 734449 = 324^2 + 857^2 .

It is not a de Polignac number, because 839425 - 2⁹ = 838913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (839429) 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, 16764 + ... + 16813.

2⁸³⁹⁴²⁵ is an apocalyptic number.

It is an amenable number.

839425 is a deficient number, since it is larger than the sum of its proper divisors (201493).

839425 is a wasteful number, since it uses less digits than its factorization.

839425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33587 (or 33582 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 839425 is about 916.2013970738. The cubic root of 839425 is about 94.3323455330.

The spelling of 839425 in words is "eight hundred thirty-nine thousand, four hundred twenty-five".