1328047 has 6 divisors (see below), whose sum is σ = 1544928. Its totient is φ = 1138284.

The previous prime is 1328017. The next prime is 1328051. The reversal of 1328047 is 7408231.

It is not a de Polignac number, because 1328047 - 2¹⁵ = 1295279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13503 + ... + 13600.

It is an arithmetic number, because the mean of its divisors is an integer number (257488).

2^1328047 is an apocalyptic number.

1328047 is a deficient number, since it is larger than the sum of its proper divisors (216881).

1328047 is an equidigital number, since it uses as much as digits as its factorization.

1328047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27117 (or 27110 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1328047 is about 1152.4092155133. The cubic root of 1328047 is about 109.9185899017.

The spelling of 1328047 in words is "one million, three hundred twenty-eight thousand, forty-seven".