829427 has 4 divisors (see below), whose sum is σ = 848760. Its totient is φ = 810096.

The previous prime is 829399. The next prime is 829453. The reversal of 829427 is 724928.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-829427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 829393 and 829402.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 829427.

It is not an unprimeable number, because it can be changed into a prime (829457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9602 + ... + 9687.

It is an arithmetic number, because the mean of its divisors is an integer number (212190).

2⁸²⁹⁴²⁷ is an apocalyptic number.

829427 is a deficient number, since it is larger than the sum of its proper divisors (19333).

829427 is a wasteful number, since it uses less digits than its factorization.

829427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19332.

The product of its digits is 8064, while the sum is 32.

The square root of 829427 is about 910.7288290155. The cubic root of 829427 is about 93.9563325167.

The spelling of 829427 in words is "eight hundred twenty-nine thousand, four hundred twenty-seven".