670006667 has 16 divisors (see below), whose sum is σ = 747823104. Its totient is φ = 595056000.

The previous prime is 670006651. The next prime is 670006679. The reversal of 670006667 is 766600076.

It is not a de Polignac number, because 670006667 - 2⁴ = 670006651 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 670006667.

It is not an unprimeable number, because it can be changed into a prime (670006637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454742 + ... + 456212.

It is an arithmetic number, because the mean of its divisors is an integer number (46738944).

Almost surely, 2^670006667 is an apocalyptic number.

670006667 is a deficient number, since it is larger than the sum of its proper divisors (77816437).

670006667 is a wasteful number, since it uses less digits than its factorization.

670006667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 670006667 is about 25884.4869951096. The cubic root of 670006667 is about 875.0369146875.

The spelling of 670006667 in words is "six hundred seventy million, six thousand, six hundred sixty-seven".