645010607 has 2 divisors, whose sum is σ = 645010608. Its totient is φ = 645010606.

The previous prime is 645010601. The next prime is 645010631. The reversal of 645010607 is 706010546.

645010607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 645010607 - 2⁴ = 645010591 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 645010607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (645010601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 322505303 + 322505304.

It is an arithmetic number, because the mean of its divisors is an integer number (322505304).

Almost surely, 2^645010607 is an apocalyptic number.

645010607 is a deficient number, since it is larger than the sum of its proper divisors (1).

645010607 is an equidigital number, since it uses as much as digits as its factorization.

645010607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 645010607 is about 25397.0590226506. The cubic root of 645010607 is about 864.0169959612.

The spelling of 645010607 in words is "six hundred forty-five million, ten thousand, six hundred seven".