6667471 has 2 divisors, whose sum is σ = 6667472. Its totient is φ = 6667470.

The previous prime is 6667457. The next prime is 6667481. The reversal of 6667471 is 1747666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6667471 - 2⁵ = 6667439 is a prime.

It is a super-3 number, since 3×6667471³ (a number of 21 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6667471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6667481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333735 + 3333736.

It is an arithmetic number, because the mean of its divisors is an integer number (3333736).

Almost surely, 2^6667471 is an apocalyptic number.

6667471 is a deficient number, since it is larger than the sum of its proper divisors (1).

6667471 is an equidigital number, since it uses as much as digits as its factorization.

6667471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 37.

The square root of 6667471 is about 2582.1446512541. The cubic root of 6667471 is about 188.2147745383.

The spelling of 6667471 in words is "six million, six hundred sixty-seven thousand, four hundred seventy-one".