2228839447 has 2 divisors, whose sum is σ = 2228839448. Its totient is φ = 2228839446.

The previous prime is 2228839433. The next prime is 2228839469. The reversal of 2228839447 is 7449388222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2228839447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2228839447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2228839427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114419723 + 1114419724.

It is an arithmetic number, because the mean of its divisors is an integer number (1114419724).

Almost surely, 2^2228839447 is an apocalyptic number.

2228839447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2228839447 is an equidigital number, since it uses as much as digits as its factorization.

2228839447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1548288, while the sum is 49.

The square root of 2228839447 is about 47210.5861751366. The cubic root of 2228839447 is about 1306.2498747983.

The spelling of 2228839447 in words is "two billion, two hundred twenty-eight million, eight hundred thirty-nine thousand, four hundred forty-seven".