831426 has 8 divisors (see below), whose sum is σ = 1662864. Its totient is φ = 277140.

The previous prime is 831409. The next prime is 831431. The reversal of 831426 is 624138.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

831426 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 831396 and 831405.

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 3 ways as a sum of consecutive naturals, for example, 69280 + ... + 69291.

It is an arithmetic number, because the mean of its divisors is an integer number (207858).

2⁸³¹⁴²⁶ is an apocalyptic number.

831426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

831426 is a wasteful number, since it uses less digits than its factorization.

831426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138576.

The product of its digits is 1152, while the sum is 24.

The square root of 831426 is about 911.8256412275. The cubic root of 831426 is about 94.0317532683.

The spelling of 831426 in words is "eight hundred thirty-one thousand, four hundred twenty-six".