831429 has 6 divisors (see below), whose sum is σ = 1200966. Its totient is φ = 554280.

The previous prime is 831409. The next prime is 831431. The reversal of 831429 is 924138.

It can be written as a sum of positive squares in only one way, i.e., 756900 + 74529 = 870^2 + 273^2 .

It is not a de Polignac number, because 831429 - 2⁷ = 831301 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831409) 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, 46182 + ... + 46199.

It is an arithmetic number, because the mean of its divisors is an integer number (200161).

2⁸³¹⁴²⁹ is an apocalyptic number.

It is an amenable number.

831429 is a deficient number, since it is larger than the sum of its proper divisors (369537).

831429 is a wasteful number, since it uses less digits than its factorization.

831429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92387 (or 92384 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 831429 is about 911.8272862774. The cubic root of 831429 is about 94.0318663651.

The spelling of 831429 in words is "eight hundred thirty-one thousand, four hundred twenty-nine".