1980227 has 2 divisors, whose sum is σ = 1980228. Its totient is φ = 1980226.

The previous prime is 1980221. The next prime is 1980229. The reversal of 1980227 is 7220891.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7220891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1980227 - 2¹⁶ = 1914691 is a prime.

Together with 1980229, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 1980227.

It is not a weakly prime, because it can be changed into another prime (1980221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990113 + 990114.

It is an arithmetic number, because the mean of its divisors is an integer number (990114).

2^1980227 is an apocalyptic number.

1980227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980227 is an equidigital number, since it uses as much as digits as its factorization.

1980227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1980227 is about 1407.2053865730. The cubic root of 1980227 is about 125.5755221275.

The spelling of 1980227 in words is "one million, nine hundred eighty thousand, two hundred twenty-seven".