1328706 has 24 divisors (see below), whose sum is σ = 2912364. Its totient is φ = 437760.

The previous prime is 1328699. The next prime is 1328711. The reversal of 1328706 is 6078231.

It can be written as a sum of positive squares in 2 ways, for example, as 1134225 + 194481 = 1065^2 + 441^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1328706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1366 + ... + 2126.

2^1328706 is an apocalyptic number.

1328706 is an abundant number, since it is smaller than the sum of its proper divisors (1583658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1328706 is a wasteful number, since it uses less digits than its factorization.

1328706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1328706 is about 1152.6951027917. The cubic root of 1328706 is about 109.9367680667.

The spelling of 1328706 in words is "one million, three hundred twenty-eight thousand, seven hundred six".