396808163 has 4 divisors (see below), whose sum is σ = 397093200. Its totient is φ = 396523128.

The previous prime is 396808151. The next prime is 396808177. The reversal of 396808163 is 361808693.

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 396808163 - 2⁴ = 396808147 is a prime.

It is a super-3 number, since 3×396808163³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396808133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140420 + ... + 143217.

It is an arithmetic number, because the mean of its divisors is an integer number (99273300).

Almost surely, 2^396808163 is an apocalyptic number.

396808163 is a deficient number, since it is larger than the sum of its proper divisors (285037).

396808163 is a wasteful number, since it uses less digits than its factorization.

396808163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285036.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 396808163 is about 19920.0442519589. The cubic root of 396808163 is about 734.8412590068.

The spelling of 396808163 in words is "three hundred ninety-six million, eight hundred eight thousand, one hundred sixty-three".