809353043 has 2 divisors, whose sum is σ = 809353044. Its totient is φ = 809353042.

The previous prime is 809353037. The next prime is 809353073. The reversal of 809353043 is 340353908.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 809353043 - 2⁶ = 809352979 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 809352994 and 809353012.

It is not a weakly prime, because it can be changed into another prime (809353033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404676521 + 404676522.

It is an arithmetic number, because the mean of its divisors is an integer number (404676522).

Almost surely, 2^809353043 is an apocalyptic number.

809353043 is a deficient number, since it is larger than the sum of its proper divisors (1).

809353043 is an equidigital number, since it uses as much as digits as its factorization.

809353043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 809353043 is about 28449.1307951579. The cubic root of 809353043 is about 931.9215071861.

The spelling of 809353043 in words is "eight hundred nine million, three hundred fifty-three thousand, forty-three".