426829 has 4 divisors (see below), whose sum is σ = 459676. Its totient is φ = 393984.

The previous prime is 426799. The next prime is 426841. The reversal of 426829 is 928624.

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

It can be written as a sum of positive squares in 2 ways, for example, as 161604 + 265225 = 402^2 + 515^2 .

It is a cyclic number.

It is not a de Polignac number, because 426829 - 2¹³ = 418637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16404 + ... + 16429.

It is an arithmetic number, because the mean of its divisors is an integer number (114919).

2⁴²⁶⁸²⁹ is an apocalyptic number.

It is an amenable number.

426829 is a deficient number, since it is larger than the sum of its proper divisors (32847).

426829 is a wasteful number, since it uses less digits than its factorization.

426829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32846.

The product of its digits is 6912, while the sum is 31.

The square root of 426829 is about 653.3215134985. The cubic root of 426829 is about 75.2924286946.

The spelling of 426829 in words is "four hundred twenty-six thousand, eight hundred twenty-nine".