1006343209 has 2 divisors, whose sum is σ = 1006343210. Its totient is φ = 1006343208.

The previous prime is 1006343201. The next prime is 1006343231. The reversal of 1006343209 is 9023436001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 864066025 + 142277184 = 29395^2 + 11928^2 .

It is a cyclic number.

It is not a de Polignac number, because 1006343209 - 2³ = 1006343201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1006343201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503171604 + 503171605.

It is an arithmetic number, because the mean of its divisors is an integer number (503171605).

Almost surely, 2^1006343209 is an apocalyptic number.

It is an amenable number.

1006343209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006343209 is an equidigital number, since it uses as much as digits as its factorization.

1006343209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1006343209 is about 31722.9129967599. The cubic root of 1006343209 is about 1002.1099479884.

The spelling of 1006343209 in words is "one billion, six million, three hundred forty-three thousand, two hundred nine".