2279447 has 2 divisors, whose sum is σ = 2279448. Its totient is φ = 2279446.

The previous prime is 2279423. The next prime is 2279467. The reversal of 2279447 is 7449722.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2279447 - 2²⁰ = 1230871 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2279467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139723 + 1139724.

It is an arithmetic number, because the mean of its divisors is an integer number (1139724).

2^2279447 is an apocalyptic number.

2279447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2279447 is an equidigital number, since it uses as much as digits as its factorization.

2279447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 35.

The square root of 2279447 is about 1509.7837593510. The cubic root of 2279447 is about 131.6062454885.

The spelling of 2279447 in words is "two million, two hundred seventy-nine thousand, four hundred forty-seven".