670249 has 2 divisors, whose sum is σ = 670250. Its totient is φ = 670248.

The previous prime is 670237. The next prime is 670261. The reversal of 670249 is 942076.

It is a balanced prime because it is at equal distance from previous prime (670237) and next prime (670261).

It can be written as a sum of positive squares in only one way, i.e., 360000 + 310249 = 600^2 + 557^2 .

It is a cyclic number.

It is not a de Polignac number, because 670249 - 2⁵ = 670217 is a prime.

670249 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (670279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335124 + 335125.

It is an arithmetic number, because the mean of its divisors is an integer number (335125).

2⁶⁷⁰²⁴⁹ is an apocalyptic number.

It is an amenable number.

670249 is a deficient number, since it is larger than the sum of its proper divisors (1).

670249 is an equidigital number, since it uses as much as digits as its factorization.

670249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 670249 is about 818.6873640163. The cubic root of 670249 is about 87.5142398593.

It can be divided in two parts, 670 and 249, that added together give a palindrome (919).

The spelling of 670249 in words is "six hundred seventy thousand, two hundred forty-nine".