67211713 has 2 divisors, whose sum is σ = 67211714. Its totient is φ = 67211712.

The previous prime is 67211707. The next prime is 67211717. The reversal of 67211713 is 31711276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58018689 + 9193024 = 7617^2 + 3032^2 .

It is a cyclic number.

It is not a de Polignac number, because 67211713 - 2⁹ = 67211201 is a prime.

It is not a weakly prime, because it can be changed into another prime (67211717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33605856 + 33605857.

It is an arithmetic number, because the mean of its divisors is an integer number (33605857).

Almost surely, 2^67211713 is an apocalyptic number.

It is an amenable number.

67211713 is a deficient number, since it is larger than the sum of its proper divisors (1).

67211713 is an equidigital number, since it uses as much as digits as its factorization.

67211713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 28.

The square root of 67211713 is about 8198.2750014866. The cubic root of 67211713 is about 406.5821624857.

Adding to 67211713 its reverse (31711276), we get a palindrome (98922989).

The spelling of 67211713 in words is "sixty-seven million, two hundred eleven thousand, seven hundred thirteen".