807343409 has 2 divisors, whose sum is σ = 807343410. Its totient is φ = 807343408.

The previous prime is 807343403. The next prime is 807343429. The reversal of 807343409 is 904343708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 760215184 + 47128225 = 27572^2 + 6865^2 .

It is a cyclic number.

It is not a de Polignac number, because 807343409 - 2⁸ = 807343153 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (807343403) 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, 403671704 + 403671705.

It is an arithmetic number, because the mean of its divisors is an integer number (403671705).

Almost surely, 2^807343409 is an apocalyptic number.

It is an amenable number.

807343409 is a deficient number, since it is larger than the sum of its proper divisors (1).

807343409 is an equidigital number, since it uses as much as digits as its factorization.

807343409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 807343409 is about 28413.7890644666. The cubic root of 807343409 is about 931.1495435443.

The spelling of 807343409 in words is "eight hundred seven million, three hundred forty-three thousand, four hundred nine".