396808147 has 2 divisors, whose sum is σ = 396808148. Its totient is φ = 396808146.

The previous prime is 396808133. The next prime is 396808151. The reversal of 396808147 is 741808693.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (741808693) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396808147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 396808097 and 396808106.

It is not a weakly prime, because it can be changed into another prime (396808117) 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, 198404073 + 198404074.

It is an arithmetic number, because the mean of its divisors is an integer number (198404074).

Almost surely, 2^396808147 is an apocalyptic number.

396808147 is a deficient number, since it is larger than the sum of its proper divisors (1).

396808147 is an equidigital number, since it uses as much as digits as its factorization.

396808147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 396808147 is about 19920.0438503533. The cubic root of 396808147 is about 734.8412491301.

The spelling of 396808147 in words is "three hundred ninety-six million, eight hundred eight thousand, one hundred forty-seven".