670217099 has 2 divisors, whose sum is σ = 670217100. Its totient is φ = 670217098.

The previous prime is 670217083. The next prime is 670217123. The reversal of 670217099 is 990712076.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 670217099 - 2⁴ = 670217083 is a prime.

It is a Chen prime.

It is equal to p_34789136 and since 670217099 and 34789136 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (670217029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335108549 + 335108550.

It is an arithmetic number, because the mean of its divisors is an integer number (335108550).

Almost surely, 2^670217099 is an apocalyptic number.

670217099 is a deficient number, since it is larger than the sum of its proper divisors (1).

670217099 is an equidigital number, since it uses as much as digits as its factorization.

670217099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 41.

The square root of 670217099 is about 25888.5515044778. The cubic root of 670217099 is about 875.1285140218.

The spelling of 670217099 in words is "six hundred seventy million, two hundred seventeen thousand, ninety-nine".