670328563 has 2 divisors, whose sum is σ = 670328564. Its totient is φ = 670328562.

The previous prime is 670328521. The next prime is 670328587. The reversal of 670328563 is 365823076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670328563 - 2⁹ = 670328051 is a prime.

It is not a weakly prime, because it can be changed into another prime (670328063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335164281 + 335164282.

It is an arithmetic number, because the mean of its divisors is an integer number (335164282).

Almost surely, 2^670328563 is an apocalyptic number.

670328563 is a deficient number, since it is larger than the sum of its proper divisors (1).

670328563 is an equidigital number, since it uses as much as digits as its factorization.

670328563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 670328563 is about 25890.7041812308. The cubic root of 670328563 is about 875.1770256248.

The spelling of 670328563 in words is "six hundred seventy million, three hundred twenty-eight thousand, five hundred sixty-three".