826119823 has 2 divisors, whose sum is σ = 826119824. Its totient is φ = 826119822.

The previous prime is 826119809. The next prime is 826119841. The reversal of 826119823 is 328911628.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-826119823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (826119863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413059911 + 413059912.

It is an arithmetic number, because the mean of its divisors is an integer number (413059912).

Almost surely, 2^826119823 is an apocalyptic number.

826119823 is a deficient number, since it is larger than the sum of its proper divisors (1).

826119823 is an equidigital number, since it uses as much as digits as its factorization.

826119823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 40.

The square root of 826119823 is about 28742.3002384987. The cubic root of 826119823 is about 938.3128870889.

The spelling of 826119823 in words is "eight hundred twenty-six million, one hundred nineteen thousand, eight hundred twenty-three".