668088007 has 2 divisors, whose sum is σ = 668088008. Its totient is φ = 668088006.

The previous prime is 668087983. The next prime is 668088011. The reversal of 668088007 is 700880866.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 668088007 - 2¹¹ = 668085959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (668088017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334044003 + 334044004.

It is an arithmetic number, because the mean of its divisors is an integer number (334044004).

Almost surely, 2^668088007 is an apocalyptic number.

668088007 is a deficient number, since it is larger than the sum of its proper divisors (1).

668088007 is an equidigital number, since it uses as much as digits as its factorization.

668088007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 668088007 is about 25847.3984570982. The cubic root of 668088007 is about 874.2008516290.

The spelling of 668088007 in words is "six hundred sixty-eight million, eighty-eight thousand, seven".