670417243 has 2 divisors, whose sum is σ = 670417244. Its totient is φ = 670417242.

The previous prime is 670417217. The next prime is 670417249. The reversal of 670417243 is 342714076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670417243 - 2⁵ = 670417211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 670417199 and 670417208.

It is not a weakly prime, because it can be changed into another prime (670417249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335208621 + 335208622.

It is an arithmetic number, because the mean of its divisors is an integer number (335208622).

Almost surely, 2^670417243 is an apocalyptic number.

670417243 is a deficient number, since it is larger than the sum of its proper divisors (1).

670417243 is an equidigital number, since it uses as much as digits as its factorization.

670417243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 670417243 is about 25892.4167083724. The cubic root of 670417243 is about 875.2156172850.

The spelling of 670417243 in words is "six hundred seventy million, four hundred seventeen thousand, two hundred forty-three".