6631907 has 2 divisors, whose sum is σ = 6631908. Its totient is φ = 6631906.

The previous prime is 6631903. The next prime is 6631909. The reversal of 6631907 is 7091366.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6631907 - 2² = 6631903 is a prime.

Together with 6631909, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (6631901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3315953 + 3315954.

It is an arithmetic number, because the mean of its divisors is an integer number (3315954).

Almost surely, 2^6631907 is an apocalyptic number.

6631907 is a deficient number, since it is larger than the sum of its proper divisors (1).

6631907 is an equidigital number, since it uses as much as digits as its factorization.

6631907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 6631907 is about 2575.2489200075. The cubic root of 6631907 is about 187.8795346408.

The spelling of 6631907 in words is "six million, six hundred thirty-one thousand, nine hundred seven".