1320827 has 4 divisors (see below), whose sum is σ = 1323456. Its totient is φ = 1318200.

The previous prime is 1320811. The next prime is 1320859. The reversal of 1320827 is 7280231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1320827 - 2⁴ = 1320811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320887) 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, 299 + ... + 1652.

It is an arithmetic number, because the mean of its divisors is an integer number (330864).

2^1320827 is an apocalyptic number.

1320827 is a deficient number, since it is larger than the sum of its proper divisors (2629).

1320827 is an equidigital number, since it uses as much as digits as its factorization.

1320827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1320827 is about 1149.2723785074. The cubic root of 1320827 is about 109.7190350288.

The spelling of 1320827 in words is "one million, three hundred twenty thousand, eight hundred twenty-seven".