396830 has 16 divisors (see below), whose sum is σ = 816480. Its totient is φ = 136032.

The previous prime is 396733. The next prime is 396833. The reversal of 396830 is 38693.

396830 = 89² + 90² + ... + 123².

It is a junction number, because it is equal to n+sod(n) for n = 396793 and 396802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396833) by changing a digit.

396830 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 7 ways as a sum of consecutive naturals, for example, 2765 + ... + 2904.

It is an arithmetic number, because the mean of its divisors is an integer number (51030).

2³⁹⁶⁸³⁰ is an apocalyptic number.

396830 is an abundant number, since it is smaller than the sum of its proper divisors (419650).

It is a weird number, because it is abundant, but not a pseudoperfect number.

396830 is a wasteful number, since it uses less digits than its factorization.

396830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5683.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 396830 is about 629.9444419947. The cubic root of 396830 is about 73.4854738597.

The spelling of 396830 in words is "three hundred ninety-six thousand, eight hundred thirty".