1328566 has 8 divisors (see below), whose sum is σ = 2002104. Its totient is φ = 661200.

The previous prime is 1328563. The next prime is 1328573. The reversal of 1328566 is 6658231.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960 + ... + 1891.

It is an arithmetic number, because the mean of its divisors is an integer number (250263).

2^1328566 is an apocalyptic number.

1328566 is a deficient number, since it is larger than the sum of its proper divisors (673538).

1328566 is a wasteful number, since it uses less digits than its factorization.

1328566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086.

The product of its digits is 8640, while the sum is 31.

The square root of 1328566 is about 1152.6343739452. The cubic root of 1328566 is about 109.9329067439.

The spelling of 1328566 in words is "one million, three hundred twenty-eight thousand, five hundred sixty-six".