826840207 has 2 divisors, whose sum is σ = 826840208. Its totient is φ = 826840206.

The previous prime is 826840193. The next prime is 826840243. The reversal of 826840207 is 702048628.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-826840207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (826840297) by changing a digit.

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 as a sum of consecutive naturals, namely, 413420103 + 413420104.

It is an arithmetic number, because the mean of its divisors is an integer number (413420104).

Almost surely, 2^826840207 is an apocalyptic number.

826840207 is a deficient number, since it is larger than the sum of its proper divisors (1).

826840207 is an equidigital number, since it uses as much as digits as its factorization.

826840207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 826840207 is about 28754.8292813572. The cubic root of 826840207 is about 938.5855469744.

The spelling of 826840207 in words is "eight hundred twenty-six million, eight hundred forty thousand, two hundred seven".