670066007 has 4 divisors (see below), whose sum is σ = 721609560. Its totient is φ = 618522456.

The previous prime is 670066003. The next prime is 670066021. The reversal of 670066007 is 700660076.

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

It is a cyclic number.

It is not a de Polignac number, because 670066007 - 2² = 670066003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670066003) 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, 25771757 + ... + 25771782.

It is an arithmetic number, because the mean of its divisors is an integer number (180402390).

Almost surely, 2^670066007 is an apocalyptic number.

670066007 is a deficient number, since it is larger than the sum of its proper divisors (51543553).

670066007 is a wasteful number, since it uses less digits than its factorization.

670066007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51543552.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 670066007 is about 25885.6332161298. The cubic root of 670066007 is about 875.0627468472.

The spelling of 670066007 in words is "six hundred seventy million, sixty-six thousand, seven".