1000073309 has 2 divisors, whose sum is σ = 1000073310. Its totient is φ = 1000073308.

The previous prime is 1000073293. The next prime is 1000073329. The reversal of 1000073309 is 9033700001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 958831225 + 41242084 = 30965^2 + 6422^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000073309 - 2⁴ = 1000073293 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000073329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500036654 + 500036655.

It is an arithmetic number, because the mean of its divisors is an integer number (500036655).

Almost surely, 2^1000073309 is an apocalyptic number.

It is an amenable number.

1000073309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000073309 is an equidigital number, since it uses as much as digits as its factorization.

1000073309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 567, while the sum is 23.

The square root of 1000073309 is about 31623.9356975061. The cubic root of 1000073309 is about 1000.0244357362.

The spelling of 1000073309 in words is "one billion, seventy-three thousand, three hundred nine".