6670000637 has 2 divisors, whose sum is σ = 6670000638. Its totient is φ = 6670000636.

The previous prime is 6670000633. The next prime is 6670000639. The reversal of 6670000637 is 7360000766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6450338596 + 219662041 = 80314^2 + 14821^2 .

It is a cyclic number.

It is not a de Polignac number, because 6670000637 - 2² = 6670000633 is a prime.

Together with 6670000639, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6670000597 and 6670000606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6670000633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3335000318 + 3335000319.

It is an arithmetic number, because the mean of its divisors is an integer number (3335000319).

Almost surely, 2^6670000637 is an apocalyptic number.

It is an amenable number.

6670000637 is a deficient number, since it is larger than the sum of its proper divisors (1).

6670000637 is an equidigital number, since it uses as much as digits as its factorization.

6670000637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 35.

The square root of 6670000637 is about 81670.0718562192. The cubic root of 6670000637 is about 1882.3857440971.

The spelling of 6670000637 in words is "six billion, six hundred seventy million, six hundred thirty-seven", and thus it is an aban number.