826829 has 6 divisors (see below), whose sum is σ = 878634. Its totient is φ = 777920.

The previous prime is 826811. The next prime is 826831. The reversal of 826829 is 928628.

It can be written as a sum of positive squares in 3 ways, for example, as 357604 + 469225 = 598^2 + 685^2 .

It is a de Polignac number, because none of the positive numbers 2^k-826829 is a prime.

It is a d-powerful number, because it can be written as 8⁵ + 2² + 8⁶ + 6³ + 2⁸ + 9⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (826849) 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, 1142 + ... + 1719.

It is an arithmetic number, because the mean of its divisors is an integer number (146439).

2⁸²⁶⁸²⁹ is an apocalyptic number.

It is an amenable number.

826829 is a deficient number, since it is larger than the sum of its proper divisors (51805).

826829 is a wasteful number, since it uses less digits than its factorization.

826829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895 (or 2878 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 826829 is about 909.3013801815. The cubic root of 826829 is about 93.8581306423.

The spelling of 826829 in words is "eight hundred twenty-six thousand, eight hundred twenty-nine".