2647471 has 2 divisors, whose sum is σ = 2647472. Its totient is φ = 2647470.

The previous prime is 2647459. The next prime is 2647481. The reversal of 2647471 is 1747462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2647471 - 2⁷ = 2647343 is a prime.

It is a super-3 number, since 3×2647471³ = 55669188369782604333, which contains 333 as substring.

It is a Chen prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2647481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323735 + 1323736.

It is an arithmetic number, because the mean of its divisors is an integer number (1323736).

2^2647471 is an apocalyptic number.

2647471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2647471 is an equidigital number, since it uses as much as digits as its factorization.

2647471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 31.

The square root of 2647471 is about 1627.1050980192. The cubic root of 2647471 is about 138.3387149726.

Subtracting from 2647471 its reverse (1747462), we obtain a palindrome (900009).

The spelling of 2647471 in words is "two million, six hundred forty-seven thousand, four hundred seventy-one".