396709 has 2 divisors, whose sum is σ = 396710. Its totient is φ = 396708.

The previous prime is 396703. The next prime is 396713. The reversal of 396709 is 907693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 390625 + 6084 = 625^2 + 78^2 .

It is an emirp because it is prime and its reverse (907693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 396709 - 2⁷ = 396581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198354 + 198355.

It is an arithmetic number, because the mean of its divisors is an integer number (198355).

2³⁹⁶⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

396709 is a deficient number, since it is larger than the sum of its proper divisors (1).

396709 is an equidigital number, since it uses as much as digits as its factorization.

396709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 396709 is about 629.8483944570. The cubic root of 396709 is about 73.4780041235.

The spelling of 396709 in words is "three hundred ninety-six thousand, seven hundred nine".