831425 has 12 divisors (see below), whose sum is σ = 1178496. Its totient is φ = 570000.

The previous prime is 831409. The next prime is 831431. The reversal of 831425 is 524138.

It is not a de Polignac number, because 831425 - 2⁴ = 831409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 831425.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 831425.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2201 + ... + 2550.

It is an arithmetic number, because the mean of its divisors is an integer number (98208).

2⁸³¹⁴²⁵ is an apocalyptic number.

It is an amenable number.

831425 is a deficient number, since it is larger than the sum of its proper divisors (347071).

831425 is a wasteful number, since it uses less digits than its factorization.

831425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4768 (or 4763 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 831425 is about 911.8250928769. The cubic root of 831425 is about 94.0317155693.

The spelling of 831425 in words is "eight hundred thirty-one thousand, four hundred twenty-five".