826855 has 8 divisors (see below), whose sum is σ = 1008864. Its totient is φ = 650400.

The previous prime is 826849. The next prime is 826867. The reversal of 826855 is 558628.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 826855 - 2¹⁹ = 302567 is a prime.

It is a Duffinian number.

826855 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 826855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051 + ... + 1660.

It is an arithmetic number, because the mean of its divisors is an integer number (126108).

2⁸²⁶⁸⁵⁵ is an apocalyptic number.

826855 is a deficient number, since it is larger than the sum of its proper divisors (182009).

826855 is a wasteful number, since it uses less digits than its factorization.

826855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2777.

The product of its digits is 19200, while the sum is 34.

The square root of 826855 is about 909.3156767592. The cubic root of 826855 is about 93.8591144353.

It can be divided in two parts, 826 and 855, that added together give a square (1681 = 41²).

The spelling of 826855 in words is "eight hundred twenty-six thousand, eight hundred fifty-five".