396543047 has 2 divisors, whose sum is σ = 396543048. Its totient is φ = 396543046.

The previous prime is 396543019. The next prime is 396543079. The reversal of 396543047 is 740345693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 396543047 - 2⁶ = 396542983 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 396542995 and 396543013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396543347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198271523 + 198271524.

It is an arithmetic number, because the mean of its divisors is an integer number (198271524).

Almost surely, 2^396543047 is an apocalyptic number.

396543047 is a deficient number, since it is larger than the sum of its proper divisors (1).

396543047 is an equidigital number, since it uses as much as digits as its factorization.

396543047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 41.

The square root of 396543047 is about 19913.3886367941. The cubic root of 396543047 is about 734.6775681717.

The spelling of 396543047 in words is "three hundred ninety-six million, five hundred forty-three thousand, forty-seven".