1007309 has 2 divisors, whose sum is σ = 1007310. Its totient is φ = 1007308.

The previous prime is 1007299. The next prime is 1007317. The reversal of 1007309 is 9037001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 635209 + 372100 = 797^2 + 610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1007309 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1007339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503654 + 503655.

It is an arithmetic number, because the mean of its divisors is an integer number (503655).

2^1007309 is an apocalyptic number.

It is an amenable number.

1007309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1007309 is an equidigital number, since it uses as much as digits as its factorization.

1007309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 1007309 is about 1003.6478466076. The cubic root of 1007309 is about 100.2430421599.

The spelling of 1007309 in words is "one million, seven thousand, three hundred nine".