396843193 has 8 divisors (see below), whose sum is σ = 400299200. Its totient is φ = 393396048.

The previous prime is 396843157. The next prime is 396843203. The reversal of 396843193 is 391348693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 396843193 - 2²¹ = 394746041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396843133) 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 7 ways as a sum of consecutive naturals, for example, 112663 + ... + 116131.

It is an arithmetic number, because the mean of its divisors is an integer number (50037400).

Almost surely, 2^396843193 is an apocalyptic number.

It is an amenable number.

396843193 is a deficient number, since it is larger than the sum of its proper divisors (3456007).

396843193 is a wasteful number, since it uses less digits than its factorization.

396843193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4431.

The product of its digits is 419904, while the sum is 46.

The square root of 396843193 is about 19920.9234976695. The cubic root of 396843193 is about 734.8628821606.

The spelling of 396843193 in words is "three hundred ninety-six million, eight hundred forty-three thousand, one hundred ninety-three".