670000169 has 4 divisors (see below), whose sum is σ = 674267844. Its totient is φ = 665732496.

The previous prime is 670000139. The next prime is 670000171. The reversal of 670000169 is 961000076.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 283484569 + 386515600 = 16837^2 + 19660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670000169 is a prime.

It is a super-2 number, since 2×670000169² = 897800452920057122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (670000129) 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 in 3 ways as a sum of consecutive naturals, for example, 2133602 + ... + 2133915.

It is an arithmetic number, because the mean of its divisors is an integer number (168566961).

Almost surely, 2^670000169 is an apocalyptic number.

It is an amenable number.

670000169 is a deficient number, since it is larger than the sum of its proper divisors (4267675).

670000169 is a wasteful number, since it uses less digits than its factorization.

670000169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4267674.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 670000169 is about 25884.3614756092. The cubic root of 670000169 is about 875.0340858558.

The spelling of 670000169 in words is "six hundred seventy million, one hundred sixty-nine", and thus it is an aban number.