2219279 has 2 divisors, whose sum is σ = 2219280. Its totient is φ = 2219278.

The previous prime is 2219251. The next prime is 2219281. The reversal of 2219279 is 9729122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2219279 - 2⁸ = 2219023 is a prime.

It is a Sophie Germain prime.

Together with 2219281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2219209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109639 + 1109640.

It is an arithmetic number, because the mean of its divisors is an integer number (1109640).

2^2219279 is an apocalyptic number.

2219279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2219279 is an equidigital number, since it uses as much as digits as its factorization.

2219279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 32.

The square root of 2219279 is about 1489.7244711691. The cubic root of 2219279 is about 130.4379509585.

The spelling of 2219279 in words is "two million, two hundred nineteen thousand, two hundred seventy-nine".