670484729 has 2 divisors, whose sum is σ = 670484730. Its totient is φ = 670484728.

The previous prime is 670484701. The next prime is 670484747. The reversal of 670484729 is 927484076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 475240000 + 195244729 = 21800^2 + 13973^2 .

It is a cyclic number.

It is not a de Polignac number, because 670484729 - 2¹⁶ = 670419193 is a prime.

It is not a weakly prime, because it can be changed into another prime (670481729) 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, 335242364 + 335242365.

It is an arithmetic number, because the mean of its divisors is an integer number (335242365).

Almost surely, 2^670484729 is an apocalyptic number.

It is an amenable number.

670484729 is a deficient number, since it is larger than the sum of its proper divisors (1).

670484729 is an equidigital number, since it uses as much as digits as its factorization.

670484729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 670484729 is about 25893.7198756764. The cubic root of 670484729 is about 875.2449834845.

The spelling of 670484729 in words is "six hundred seventy million, four hundred eighty-four thousand, seven hundred twenty-nine".