396818211 has 16 divisors (see below), whose sum is σ = 557373440. Its totient is φ = 250426080.

The previous prime is 396818207. The next prime is 396818221. The reversal of 396818211 is 112818693.

It is not a de Polignac number, because 396818211 - 2² = 396818207 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 396818211.

It is not an unprimeable number, because it can be changed into a prime (396818221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115326 + ... + 118716.

It is an arithmetic number, because the mean of its divisors is an integer number (34835840).

Almost surely, 2^396818211 is an apocalyptic number.

396818211 is a deficient number, since it is larger than the sum of its proper divisors (160555229).

396818211 is a wasteful number, since it uses less digits than its factorization.

396818211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5466.

The product of its digits is 20736, while the sum is 39.

The square root of 396818211 is about 19920.2964586374. The cubic root of 396818211 is about 734.8474615192.

The spelling of 396818211 in words is "three hundred ninety-six million, eight hundred eighteen thousand, two hundred eleven".