396100643 has 2 divisors, whose sum is σ = 396100644. Its totient is φ = 396100642.

The previous prime is 396100597. The next prime is 396100669. The reversal of 396100643 is 346001693.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 396100643 - 2⁸ = 396100387 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (396100343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198050321 + 198050322.

It is an arithmetic number, because the mean of its divisors is an integer number (198050322).

Almost surely, 2^396100643 is an apocalyptic number.

396100643 is a deficient number, since it is larger than the sum of its proper divisors (1).

396100643 is an equidigital number, since it uses as much as digits as its factorization.

396100643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 396100643 is about 19902.2773320040. The cubic root of 396100643 is about 734.4042516986.

The spelling of 396100643 in words is "three hundred ninety-six million, one hundred thousand, six hundred forty-three".