826344949 has 2 divisors, whose sum is σ = 826344950. Its totient is φ = 826344948.

The previous prime is 826344863. The next prime is 826344991. The reversal of 826344949 is 949443628.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 826160049 + 184900 = 28743^2 + 430^2 .

It is a cyclic number.

It is not a de Polignac number, because 826344949 - 2¹³ = 826336757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (826344149) 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, 413172474 + 413172475.

It is an arithmetic number, because the mean of its divisors is an integer number (413172475).

Almost surely, 2^826344949 is an apocalyptic number.

It is an amenable number.

826344949 is a deficient number, since it is larger than the sum of its proper divisors (1).

826344949 is an equidigital number, since it uses as much as digits as its factorization.

826344949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 49.

The square root of 826344949 is about 28746.2162553613. The cubic root of 826344949 is about 938.3981125956.

The spelling of 826344949 in words is "eight hundred twenty-six million, three hundred forty-four thousand, nine hundred forty-nine".