670673 has 2 divisors, whose sum is σ = 670674. Its totient is φ = 670672.

The previous prime is 670669. The next prime is 670693. The reversal of 670673 is 376076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 620944 + 49729 = 788^2 + 223^2 .

It is a cyclic number.

It is not a de Polignac number, because 670673 - 2² = 670669 is a prime.

It is a super-3 number, since 3×670673³ = 905010719376333651, which contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (670613) 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 as a sum of consecutive naturals, namely, 335336 + 335337.

It is an arithmetic number, because the mean of its divisors is an integer number (335337).

2⁶⁷⁰⁶⁷³ is an apocalyptic number.

It is an amenable number.

670673 is a deficient number, since it is larger than the sum of its proper divisors (1).

670673 is an equidigital number, since it uses as much as digits as its factorization.

670673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 670673 is about 818.9462741841. The cubic root of 670673 is about 87.5326898264.

The spelling of 670673 in words is "six hundred seventy thousand, six hundred seventy-three".