670707607 has 2 divisors, whose sum is σ = 670707608. Its totient is φ = 670707606.

The previous prime is 670707589. The next prime is 670707637. The reversal of 670707607 is 706707076.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670707607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 670707607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670707637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335353803 + 335353804.

It is an arithmetic number, because the mean of its divisors is an integer number (335353804).

Almost surely, 2^670707607 is an apocalyptic number.

670707607 is a deficient number, since it is larger than the sum of its proper divisors (1).

670707607 is an equidigital number, since it uses as much as digits as its factorization.

670707607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86436, while the sum is 40.

The square root of 670707607 is about 25898.0232257213. The cubic root of 670707607 is about 875.3419537470.

The spelling of 670707607 in words is "six hundred seventy million, seven hundred seven thousand, six hundred seven".