2447971 has 2 divisors, whose sum is σ = 2447972. Its totient is φ = 2447970.

The previous prime is 2447953. The next prime is 2447981. The reversal of 2447971 is 1797442.

2447971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2447971 - 2⁷ = 2447843 is a prime.

It is not a weakly prime, because it can be changed into another prime (2447981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1223985 + 1223986.

It is an arithmetic number, because the mean of its divisors is an integer number (1223986).

2^2447971 is an apocalyptic number.

2447971 is a deficient number, since it is larger than the sum of its proper divisors (1).

2447971 is an equidigital number, since it uses as much as digits as its factorization.

2447971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 34.

The square root of 2447971 is about 1564.5993097276. The cubic root of 2447971 is about 134.7727498210.

The spelling of 2447971 in words is "two million, four hundred forty-seven thousand, nine hundred seventy-one".