670702211 has 2 divisors, whose sum is σ = 670702212. Its totient is φ = 670702210.

The previous prime is 670702189. The next prime is 670702217. The reversal of 670702211 is 112207076.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670702211 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (670702217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335351105 + 335351106.

It is an arithmetic number, because the mean of its divisors is an integer number (335351106).

Almost surely, 2^670702211 is an apocalyptic number.

670702211 is a deficient number, since it is larger than the sum of its proper divisors (1).

670702211 is an equidigital number, since it uses as much as digits as its factorization.

670702211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 670702211 is about 25897.9190476764. The cubic root of 670702211 is about 875.3396062969.

Adding to 670702211 its reverse (112207076), we get a palindrome (782909287).

The spelling of 670702211 in words is "six hundred seventy million, seven hundred two thousand, two hundred eleven".