396366947 has 2 divisors, whose sum is σ = 396366948. Its totient is φ = 396366946.

The previous prime is 396366907. The next prime is 396366989. The reversal of 396366947 is 749663693.

It is a weak prime.

It is an emirp because it is prime and its reverse (749663693) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 396366947 - 2¹⁸ = 396104803 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (396366907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198183473 + 198183474.

It is an arithmetic number, because the mean of its divisors is an integer number (198183474).

Almost surely, 2^396366947 is an apocalyptic number.

396366947 is a deficient number, since it is larger than the sum of its proper divisors (1).

396366947 is an equidigital number, since it uses as much as digits as its factorization.

396366947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 53.

The square root of 396366947 is about 19908.9664975357. The cubic root of 396366947 is about 734.5687982437.

The spelling of 396366947 in words is "three hundred ninety-six million, three hundred sixty-six thousand, nine hundred forty-seven".