6634447 has 2 divisors, whose sum is σ = 6634448. Its totient is φ = 6634446.

The previous prime is 6634429. The next prime is 6634451. The reversal of 6634447 is 7444366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6634447 - 2⁷ = 6634319 is a prime.

6634447 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6634547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3317223 + 3317224.

It is an arithmetic number, because the mean of its divisors is an integer number (3317224).

Almost surely, 2^6634447 is an apocalyptic number.

6634447 is a deficient number, since it is larger than the sum of its proper divisors (1).

6634447 is an equidigital number, since it uses as much as digits as its factorization.

6634447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 34.

The square root of 6634447 is about 2575.7420290083. The cubic root of 6634447 is about 187.9035173408.

The spelling of 6634447 in words is "six million, six hundred thirty-four thousand, four hundred forty-seven".