670066867 has 2 divisors, whose sum is σ = 670066868. Its totient is φ = 670066866.

The previous prime is 670066847. The next prime is 670066871. The reversal of 670066867 is 768660076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670066867 - 2⁷ = 670066739 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (670066847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335033433 + 335033434.

It is an arithmetic number, because the mean of its divisors is an integer number (335033434).

Almost surely, 2^670066867 is an apocalyptic number.

670066867 is a deficient number, since it is larger than the sum of its proper divisors (1).

670066867 is an equidigital number, since it uses as much as digits as its factorization.

670066867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 670066867 is about 25885.6498276555. The cubic root of 670066867 is about 875.0631212151.

The spelling of 670066867 in words is "six hundred seventy million, sixty-six thousand, eight hundred sixty-seven".