670947 has 16 divisors (see below), whose sum is σ = 960000. Its totient is φ = 415584.

The previous prime is 670931. The next prime is 670951. The reversal of 670947 is 749076.

It is not a de Polignac number, because 670947 - 2⁴ = 670931 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 670947.

It is not an unprimeable number, because it can be changed into a prime (670987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4429 + ... + 4577.

It is an arithmetic number, because the mean of its divisors is an integer number (60000).

2⁶⁷⁰⁹⁴⁷ is an apocalyptic number.

670947 is a deficient number, since it is larger than the sum of its proper divisors (289053).

670947 is a wasteful number, since it uses less digits than its factorization.

670947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 670947 is about 819.1135452427. The cubic root of 670947 is about 87.5446085467.

The spelling of 670947 in words is "six hundred seventy thousand, nine hundred forty-seven".