823859041 has 2 divisors, whose sum is σ = 823859042. Its totient is φ = 823859040.

The previous prime is 823859021. The next prime is 823859053. The reversal of 823859041 is 140958328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 682724641 + 141134400 = 26129^2 + 11880^2 .

It is a cyclic number.

It is not a de Polignac number, because 823859041 - 2⁵ = 823859009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 823858985 and 823859003.

It is not a weakly prime, because it can be changed into another prime (823859021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411929520 + 411929521.

It is an arithmetic number, because the mean of its divisors is an integer number (411929521).

Almost surely, 2^823859041 is an apocalyptic number.

It is an amenable number.

823859041 is a deficient number, since it is larger than the sum of its proper divisors (1).

823859041 is an equidigital number, since it uses as much as digits as its factorization.

823859041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 823859041 is about 28702.9448140779. The cubic root of 823859041 is about 937.4561675744.

The spelling of 823859041 in words is "eight hundred twenty-three million, eight hundred fifty-nine thousand, forty-one".