5681471 has 2 divisors, whose sum is σ = 5681472. Its totient is φ = 5681470.

The previous prime is 5681453. The next prime is 5681497. The reversal of 5681471 is 1741865.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5681471 is a prime.

It is a super-3 number, since 3×5681471³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5683471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2840735 + 2840736.

It is an arithmetic number, because the mean of its divisors is an integer number (2840736).

Almost surely, 2^5681471 is an apocalyptic number.

5681471 is a deficient number, since it is larger than the sum of its proper divisors (1).

5681471 is an equidigital number, since it uses as much as digits as its factorization.

5681471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 32.

The square root of 5681471 is about 2383.5836465289. The cubic root of 5681471 is about 178.4378293061.

It can be divided in two parts, 5 and 681471, that multiplied together give a triangular number (3407355 = T₂₆₁₀).

The spelling of 5681471 in words is "five million, six hundred eighty-one thousand, four hundred seventy-one".