670000013 has 2 divisors, whose sum is σ = 670000014. Its totient is φ = 670000012.

The previous prime is 669999989. The next prime is 670000031. The reversal of 670000013 is 310000076.

Together with next prime (670000031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 499880164 + 170119849 = 22358^2 + 13043^2 .

It is a cyclic number.

It is not a de Polignac number, because 670000013 - 2²² = 665805709 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 669999946 and 670000000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670002013) by changing a digit.

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 as a sum of consecutive naturals, namely, 335000006 + 335000007.

It is an arithmetic number, because the mean of its divisors is an integer number (335000007).

Almost surely, 2^670000013 is an apocalyptic number.

It is an amenable number.

670000013 is a deficient number, since it is larger than the sum of its proper divisors (1).

670000013 is an equidigital number, since it uses as much as digits as its factorization.

670000013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 670000013 is about 25884.3584622065. The cubic root of 670000013 is about 875.0340179428.

Adding to 670000013 its reverse (310000076), we get a palindrome (980000089).

The spelling of 670000013 in words is "six hundred seventy million, thirteen", and thus it is an aban number.