396000845309 has 2 divisors, whose sum is σ = 396000845310. Its totient is φ = 396000845308.

The previous prime is 396000845299. The next prime is 396000845321. The reversal of 396000845309 is 903548000693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 362410020025 + 33590825284 = 602005^2 + 183278^2 .

It is a cyclic number.

It is not a de Polignac number, because 396000845309 - 2⁴ = 396000845293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396000845329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198000422654 + 198000422655.

It is an arithmetic number, because the mean of its divisors is an integer number (198000422655).

Almost surely, 2^396000845309 is an apocalyptic number.

It is an amenable number.

396000845309 is a deficient number, since it is larger than the sum of its proper divisors (1).

396000845309 is an equidigital number, since it uses as much as digits as its factorization.

396000845309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 396000845309 in words is "three hundred ninety-six billion, eight hundred forty-five thousand, three hundred nine".