670351723 has 2 divisors, whose sum is σ = 670351724. Its totient is φ = 670351722.

The previous prime is 670351709. The next prime is 670351729. The reversal of 670351723 is 327153076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670351723 - 2²¹ = 668254571 is a prime.

It is not a weakly prime, because it can be changed into another prime (670351729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335175861 + 335175862.

It is an arithmetic number, because the mean of its divisors is an integer number (335175862).

Almost surely, 2^670351723 is an apocalyptic number.

670351723 is a deficient number, since it is larger than the sum of its proper divisors (1).

670351723 is an equidigital number, since it uses as much as digits as its factorization.

670351723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 670351723 is about 25891.1514421433. The cubic root of 670351723 is about 875.1871046953.

The spelling of 670351723 in words is "six hundred seventy million, three hundred fifty-one thousand, seven hundred twenty-three".