826716 has 24 divisors (see below), whose sum is σ = 2104704. Its totient is φ = 250480.

The previous prime is 826711. The next prime is 826717. The reversal of 826716 is 617628.

It is a happy number.

It is an Ulam 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 826716.

It is not an unprimeable number, because it can be changed into a prime (826711) by changing a digit.

826716 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 3000 + ... + 3263.

It is an arithmetic number, because the mean of its divisors is an integer number (87696).

2⁸²⁶⁷¹⁶ is an apocalyptic number.

It is an amenable number.

826716 is an abundant number, since it is smaller than the sum of its proper divisors (1277988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

826716 is a wasteful number, since it uses less digits than its factorization.

826716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6281 (or 6279 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 826716 is about 909.2392424439. The cubic root of 826716 is about 93.8538546868.

The spelling of 826716 in words is "eight hundred twenty-six thousand, seven hundred sixteen".