826805263 has 2 divisors, whose sum is σ = 826805264. Its totient is φ = 826805262.

The previous prime is 826805249. The next prime is 826805323. The reversal of 826805263 is 362508628.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 826805263 - 2²¹ = 824708111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (826805563) 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 as a sum of consecutive naturals, namely, 413402631 + 413402632.

It is an arithmetic number, because the mean of its divisors is an integer number (413402632).

Almost surely, 2^826805263 is an apocalyptic number.

826805263 is a deficient number, since it is larger than the sum of its proper divisors (1).

826805263 is an equidigital number, since it uses as much as digits as its factorization.

826805263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 826805263 is about 28754.2216552631. The cubic root of 826805263 is about 938.5723245907.

The spelling of 826805263 in words is "eight hundred twenty-six million, eight hundred five thousand, two hundred sixty-three".