827791 has 2 divisors, whose sum is σ = 827792.
Its totient is φ = 827790.
The previous prime is 827779. The next prime is 827803. The reversal of 827791 is 197728.
827791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a balanced prime because it is at equal distance from previous prime (827779) and next prime (827803).
It is a cyclic number.
It is not a de Polignac number, because 827791 - 215 = 795023 is a prime.
827791 is a lucky number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (827741) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413895 + 413896.
It is an arithmetic number, because the mean of its divisors is an integer number (413896).
2827791 is an apocalyptic number.
827791 is a deficient number, since it is larger than the sum of its proper divisors (1).
827791 is an equidigital number, since it uses as much as digits as its factorization.
827791 is an evil number, because the sum of its binary digits is even.
The product of its digits is 7056, while the sum is 34.
The square root of 827791 is about 909.8302039392.
The cubic root of 827791 is about 93.8945172578.
The spelling of 827791 in words is "eight hundred twenty-seven thousand, seven hundred ninety-one".