823730041 has 2 divisors, whose sum is σ = 823730042. Its totient is φ = 823730040.

The previous prime is 823730023. The next prime is 823730051. The reversal of 823730041 is 140037328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 743107600 + 80622441 = 27260^2 + 8979^2 .

It is a cyclic number.

It is not a de Polignac number, because 823730041 - 2⁷ = 823729913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 823729991 and 823730009.

It is not a weakly prime, because it can be changed into another prime (823730051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411865020 + 411865021.

It is an arithmetic number, because the mean of its divisors is an integer number (411865021).

Almost surely, 2^823730041 is an apocalyptic number.

It is an amenable number.

823730041 is a deficient number, since it is larger than the sum of its proper divisors (1).

823730041 is an equidigital number, since it uses as much as digits as its factorization.

823730041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 823730041 is about 28700.6975699198. The cubic root of 823730041 is about 937.4072360007.

Adding to 823730041 its reverse (140037328), we get a palindrome (963767369).

The spelling of 823730041 in words is "eight hundred twenty-three million, seven hundred thirty thousand, forty-one".