396538543 has 4 divisors (see below), whose sum is σ = 396670248. Its totient is φ = 396406840.

The previous prime is 396538537. The next prime is 396538579. The reversal of 396538543 is 345835693.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 396538543 - 2⁹ = 396538031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396538493 and 396538502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396538643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61228 + ... + 67393.

It is an arithmetic number, because the mean of its divisors is an integer number (99167562).

Almost surely, 2^396538543 is an apocalyptic number.

396538543 is a deficient number, since it is larger than the sum of its proper divisors (131705).

396538543 is a wasteful number, since it uses less digits than its factorization.

396538543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131704.

The product of its digits is 1166400, while the sum is 46.

The square root of 396538543 is about 19913.2755467301. The cubic root of 396538543 is about 734.6747866323.

The spelling of 396538543 in words is "three hundred ninety-six million, five hundred thirty-eight thousand, five hundred forty-three".