2447884121 has 2 divisors, whose sum is σ = 2447884122. Its totient is φ = 2447884120.

The previous prime is 2447884097. The next prime is 2447884141. The reversal of 2447884121 is 1214887442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2393655625 + 54228496 = 48925^2 + 7364^2 .

It is a cyclic number.

It is not a de Polignac number, because 2447884121 - 2²² = 2443689817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2447884141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1223942060 + 1223942061.

It is an arithmetic number, because the mean of its divisors is an integer number (1223942061).

Almost surely, 2^2447884121 is an apocalyptic number.

It is an amenable number.

2447884121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2447884121 is an equidigital number, since it uses as much as digits as its factorization.

2447884121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 114688, while the sum is 41.

The square root of 2447884121 is about 49476.0964608163. The cubic root of 2447884121 is about 1347.7115543120.

The spelling of 2447884121 in words is "two billion, four hundred forty-seven million, eight hundred eighty-four thousand, one hundred twenty-one".