16027321 has 2 divisors, whose sum is σ = 16027322. Its totient is φ = 16027320.

The previous prime is 16027313. The next prime is 16027337. The reversal of 16027321 is 12372061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13402921 + 2624400 = 3661^2 + 1620^2 .

It is a cyclic number.

It is not a de Polignac number, because 16027321 - 2³ = 16027313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16027292 and 16027301.

It is not a weakly prime, because it can be changed into another prime (16027391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8013660 + 8013661.

It is an arithmetic number, because the mean of its divisors is an integer number (8013661).

Almost surely, 2^16027321 is an apocalyptic number.

It is an amenable number.

16027321 is a deficient number, since it is larger than the sum of its proper divisors (1).

16027321 is an equidigital number, since it uses as much as digits as its factorization.

16027321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 16027321 is about 4003.4136683585. The cubic root of 16027321 is about 252.1275546824.

Adding to 16027321 its reverse (12372061), we get a palindrome (28399382).

The spelling of 16027321 in words is "sixteen million, twenty-seven thousand, three hundred twenty-one".