396658 has 8 divisors (see below), whose sum is σ = 620928. Its totient is φ = 189684.

The previous prime is 396647. The next prime is 396667. The reversal of 396658 is 856693.

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

It is a congruent number.

It is an unprimeable number.

396658 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, 4266 + ... + 4357.

It is an arithmetic number, because the mean of its divisors is an integer number (77616).

2³⁹⁶⁶⁵⁸ is an apocalyptic number.

396658 is a deficient number, since it is larger than the sum of its proper divisors (224270).

396658 is a wasteful number, since it uses less digits than its factorization.

396658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8648.

The product of its digits is 38880, while the sum is 37.

The square root of 396658 is about 629.8079072225. The cubic root of 396658 is about 73.4748552673.

The spelling of 396658 in words is "three hundred ninety-six thousand, six hundred fifty-eight".