168670009 has 8 divisors (see below), whose sum is σ = 172487880. Its totient is φ = 164875776.

The previous prime is 168670001. The next prime is 168670031. The reversal of 168670009 is 900076861.

168670009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5546025 + 163123984 = 2355^2 + 12772^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168670009 - 2³ = 168670001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168670009.

It is not an unprimeable number, because it can be changed into a prime (168670001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8937 + ... + 20425.

It is an arithmetic number, because the mean of its divisors is an integer number (21560985).

Almost surely, 2^168670009 is an apocalyptic number.

It is an amenable number.

168670009 is a deficient number, since it is larger than the sum of its proper divisors (3817871).

168670009 is a wasteful number, since it uses less digits than its factorization.

168670009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11819.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 168670009 is about 12987.3018367943. The cubic root of 168670009 is about 552.5173956290.

The spelling of 168670009 in words is "one hundred sixty-eight million, six hundred seventy thousand, nine".