667411117 has 2 divisors, whose sum is σ = 667411118. Its totient is φ = 667411116.

The previous prime is 667411103. The next prime is 667411163. The reversal of 667411117 is 711114766.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 391485796 + 275925321 = 19786^2 + 16611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667411117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667411417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333705558 + 333705559.

It is an arithmetic number, because the mean of its divisors is an integer number (333705559).

Almost surely, 2^667411117 is an apocalyptic number.

It is an amenable number.

667411117 is a deficient number, since it is larger than the sum of its proper divisors (1).

667411117 is an equidigital number, since it uses as much as digits as its factorization.

667411117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056, while the sum is 34.

The square root of 667411117 is about 25834.3011711174. The cubic root of 667411117 is about 873.9055124095.

The spelling of 667411117 in words is "six hundred sixty-seven million, four hundred eleven thousand, one hundred seventeen".