396566 has 16 divisors (see below), whose sum is σ = 640224. Its totient is φ = 183744.

The previous prime is 396563. The next prime is 396577. The reversal of 396566 is 665693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1586 + ... + 1818.

It is an arithmetic number, because the mean of its divisors is an integer number (40014).

2³⁹⁶⁵⁶⁶ is an apocalyptic number.

396566 is a deficient number, since it is larger than the sum of its proper divisors (243658).

396566 is a wasteful number, since it uses less digits than its factorization.

396566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295.

The product of its digits is 29160, while the sum is 35.

The square root of 396566 is about 629.7348648439. The cubic root of 396566 is about 73.4691742950.

It can be divided in two parts, 3 and 96566, that added together give a palindrome (96569).

The spelling of 396566 in words is "three hundred ninety-six thousand, five hundred sixty-six".