6629471 has 2 divisors, whose sum is σ = 6629472. Its totient is φ = 6629470.

The previous prime is 6629437. The next prime is 6629477. The reversal of 6629471 is 1749266.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6629471 - 2⁶ = 6629407 is a prime.

It is a super-3 number, since 3×6629471³ (a number of 21 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6629477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314735 + 3314736.

It is an arithmetic number, because the mean of its divisors is an integer number (3314736).

Almost surely, 2^6629471 is an apocalyptic number.

6629471 is a deficient number, since it is larger than the sum of its proper divisors (1).

6629471 is an equidigital number, since it uses as much as digits as its factorization.

6629471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 6629471 is about 2574.7759125796. The cubic root of 6629471 is about 187.8565281564.

The spelling of 6629471 in words is "six million, six hundred twenty-nine thousand, four hundred seventy-one".