667104013 has 2 divisors, whose sum is σ = 667104014. Its totient is φ = 667104012.

The previous prime is 667103999. The next prime is 667104037. The reversal of 667104013 is 310401766.

667104013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 666775684 + 328329 = 25822^2 + 573^2 .

It is a cyclic number.

It is not a de Polignac number, because 667104013 - 2²⁹ = 130233101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667104073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333552006 + 333552007.

It is an arithmetic number, because the mean of its divisors is an integer number (333552007).

Almost surely, 2^667104013 is an apocalyptic number.

It is an amenable number.

667104013 is a deficient number, since it is larger than the sum of its proper divisors (1).

667104013 is an equidigital number, since it uses as much as digits as its factorization.

667104013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 667104013 is about 25828.3567615131. The cubic root of 667104013 is about 873.7714515852.

Adding to 667104013 its reverse (310401766), we get a palindrome (977505779).

The spelling of 667104013 in words is "six hundred sixty-seven million, one hundred four thousand, thirteen".