1979227 has 2 divisors, whose sum is σ = 1979228. Its totient is φ = 1979226.

The previous prime is 1979209. The next prime is 1979233. The reversal of 1979227 is 7229791.

It is a strong prime.

It is an emirp because it is prime and its reverse (7229791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1979227 - 2¹⁹ = 1454939 is a prime.

It is not a weakly prime, because it can be changed into another prime (1979207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 989613 + 989614.

It is an arithmetic number, because the mean of its divisors is an integer number (989614).

2^1979227 is an apocalyptic number.

1979227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1979227 is an equidigital number, since it uses as much as digits as its factorization.

1979227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 37.

The square root of 1979227 is about 1406.8500275438. The cubic root of 1979227 is about 125.5543803314.

The spelling of 1979227 in words is "one million, nine hundred seventy-nine thousand, two hundred twenty-seven".