670605005 has 8 divisors (see below), whose sum is σ = 919686912. Its totient is φ = 459843408.

The previous prime is 670604993. The next prime is 670605031. The reversal of 670605005 is 500506076.

670605005 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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 670605005 - 2²⁰ = 669556429 is a prime.

It is a super-2 number, since 2×670605005² = 899422145462100050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 9580037 + ... + 9580106.

It is an arithmetic number, because the mean of its divisors is an integer number (114960864).

Almost surely, 2^670605005 is an apocalyptic number.

It is an amenable number.

670605005 is a deficient number, since it is larger than the sum of its proper divisors (249081907).

670605005 is a wasteful number, since it uses less digits than its factorization.

670605005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19160155.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 670605005 is about 25896.0422651802. The cubic root of 670605005 is about 875.2973161064.

The spelling of 670605005 in words is "six hundred seventy million, six hundred five thousand, five".