396808 has 16 divisors (see below), whose sum is σ = 750780. Its totient is φ = 196608.

The previous prime is 396733. The next prime is 396833. The reversal of 396808 is 808693.

It can be written as a sum of positive squares in 2 ways, for example, as 381924 + 14884 = 618^2 + 122^2 .

It is a congruent number.

It is an unprimeable number.

396808 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1416 + ... + 1672.

2³⁹⁶⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

396808 is a deficient number, since it is larger than the sum of its proper divisors (353972).

396808 is a wasteful number, since it uses less digits than its factorization.

396808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 396808 is about 629.9269798953. The cubic root of 396808 is about 73.4841158388.

The spelling of 396808 in words is "three hundred ninety-six thousand, eight hundred eight".