1328273 has 4 divisors (see below), whose sum is σ = 1386048. Its totient is φ = 1270500.

The previous prime is 1328269. The next prime is 1328279. The reversal of 1328273 is 3728231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1328273 - 2² = 1328269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1328279) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28853 + ... + 28898.

It is an arithmetic number, because the mean of its divisors is an integer number (346512).

2^1328273 is an apocalyptic number.

It is an amenable number.

1328273 is a deficient number, since it is larger than the sum of its proper divisors (57775).

1328273 is an equidigital number, since it uses as much as digits as its factorization.

1328273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57774.

The product of its digits is 2016, while the sum is 26.

The square root of 1328273 is about 1152.5072667884. The cubic root of 1328273 is about 109.9248246690.

The spelling of 1328273 in words is "one million, three hundred twenty-eight thousand, two hundred seventy-three".