826013 has 4 divisors (see below), whose sum is σ = 874620. Its totient is φ = 777408.

The previous prime is 825997. The next prime is 826019. The reversal of 826013 is 310628.

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 597529 + 228484 = 773^2 + 478^2 .

It is a cyclic number.

It is not a de Polignac number, because 826013 - 2⁴ = 825997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 826013.

It is not an unprimeable number, because it can be changed into a prime (826019) by changing a digit.

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, 24278 + ... + 24311.

It is an arithmetic number, because the mean of its divisors is an integer number (218655).

2⁸²⁶⁰¹³ is an apocalyptic number.

It is an amenable number.

826013 is a deficient number, since it is larger than the sum of its proper divisors (48607).

826013 is a wasteful number, since it uses less digits than its factorization.

826013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48606.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 826013 is about 908.8525733033. The cubic root of 826013 is about 93.8272441899.

The spelling of 826013 in words is "eight hundred twenty-six thousand, thirteen".