670707269 has 2 divisors, whose sum is σ = 670707270. Its totient is φ = 670707268.

The previous prime is 670707241. The next prime is 670707281. The reversal of 670707269 is 962707076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 596092225 + 74615044 = 24415^2 + 8638^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670707269 is a prime.

It is a super-2 number, since 2×670707269² = 899696481378876722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670706269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335353634 + 335353635.

It is an arithmetic number, because the mean of its divisors is an integer number (335353635).

Almost surely, 2^670707269 is an apocalyptic number.

It is an amenable number.

670707269 is a deficient number, since it is larger than the sum of its proper divisors (1).

670707269 is an equidigital number, since it uses as much as digits as its factorization.

670707269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 670707269 is about 25898.0167001259. The cubic root of 670707269 is about 875.3418067054.

The spelling of 670707269 in words is "six hundred seventy million, seven hundred seven thousand, two hundred sixty-nine".