670591169 has 2 divisors, whose sum is σ = 670591170. Its totient is φ = 670591168.

The previous prime is 670591153. The next prime is 670591189. The reversal of 670591169 is 961195076.

It is a happy number.

670591169 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 can be written as a sum of positive squares in only one way, i.e., 580569025 + 90022144 = 24095^2 + 9488^2 .

It is a cyclic number.

It is not a de Polignac number, because 670591169 - 2⁴ = 670591153 is a prime.

It is a super-2 number, since 2×670591169² = 899385031881573122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (670591189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335295584 + 335295585.

It is an arithmetic number, because the mean of its divisors is an integer number (335295585).

Almost surely, 2^670591169 is an apocalyptic number.

It is an amenable number.

670591169 is a deficient number, since it is larger than the sum of its proper divisors (1).

670591169 is an equidigital number, since it uses as much as digits as its factorization.

670591169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 670591169 is about 25895.7751187332. The cubic root of 670591169 is about 875.2912963199.

The spelling of 670591169 in words is "six hundred seventy million, five hundred ninety-one thousand, one hundred sixty-nine".