1027321 has 2 divisors, whose sum is σ = 1027322. Its totient is φ = 1027320.

The previous prime is 1027319. The next prime is 1027331. The reversal of 1027321 is 1237201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 837225 + 190096 = 915^2 + 436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1027321 - 2¹ = 1027319 is a prime.

Together with 1027319, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1027295 and 1027304.

It is not a weakly prime, because it can be changed into another prime (1027331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513660 + 513661.

It is an arithmetic number, because the mean of its divisors is an integer number (513661).

2^1027321 is an apocalyptic number.

It is an amenable number.

1027321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1027321 is an equidigital number, since it uses as much as digits as its factorization.

1027321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1027321 is about 1013.5684486013. The cubic root of 1027321 is about 100.9025298924.

The spelling of 1027321 in words is "one million, twenty-seven thousand, three hundred twenty-one".