826 has 8 divisors (see below), whose sum is σ = 1440.
Its totient is φ = 348.
The previous prime is 823. The next prime is 827. The reversal of 826 is 628.
It can be divided in two parts, 82 and 6, that added together give a palindrome (88).
826 is an esthetic number in base 3 and base 6, because in such bases its adjacent digits differ by 1.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a plaindrome in base 9, base 12 and base 16.
It is a nialpdrome in base 14.
It is not an unprimeable number, because it can be changed into a prime (821) 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, 16 + ... + 43.
It is an arithmetic number, because the mean of its divisors is an integer number (180).
2826 is an apocalyptic number.
826 is a deficient number, since it is larger than the sum of its proper divisors (614).
826 is a wasteful number, since it uses less digits than its factorization.
826 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 68.
The product of its digits is 96, while the sum is 16.
The square root of 826 is about 28.7402157264.
The cubic root of 826 is about 9.3826751962.
The spelling of 826 in words is "eight hundred twenty-six", and thus it is an aban number and an oban number.