670344553 has 2 divisors, whose sum is σ = 670344554. Its totient is φ = 670344552.

The previous prime is 670344539. The next prime is 670344613. The reversal of 670344553 is 355443076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 653722624 + 16621929 = 25568^2 + 4077^2 .

It is a cyclic number.

It is not a de Polignac number, because 670344553 - 2¹³ = 670336361 is a prime.

It is not a weakly prime, because it can be changed into another prime (670344523) 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, 335172276 + 335172277.

It is an arithmetic number, because the mean of its divisors is an integer number (335172277).

Almost surely, 2^670344553 is an apocalyptic number.

It is an amenable number.

670344553 is a deficient number, since it is larger than the sum of its proper divisors (1).

670344553 is an equidigital number, since it uses as much as digits as its factorization.

670344553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 37.

The square root of 670344553 is about 25891.0129774793. The cubic root of 670344553 is about 875.1839843861.

The spelling of 670344553 in words is "six hundred seventy million, three hundred forty-four thousand, five hundred fifty-three".