666796093 has 2 divisors, whose sum is σ = 666796094. Its totient is φ = 666796092.

The previous prime is 666796057. The next prime is 666796133. The reversal of 666796093 is 390697666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429235524 + 237560569 = 20718^2 + 15413^2 .

It is a cyclic number.

It is not a de Polignac number, because 666796093 - 2⁹ = 666795581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 666796093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (666796693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333398046 + 333398047.

It is an arithmetic number, because the mean of its divisors is an integer number (333398047).

Almost surely, 2^666796093 is an apocalyptic number.

It is an amenable number.

666796093 is a deficient number, since it is larger than the sum of its proper divisors (1).

666796093 is an equidigital number, since it uses as much as digits as its factorization.

666796093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2204496, while the sum is 52.

The square root of 666796093 is about 25822.3951832513. The cubic root of 666796093 is about 873.6369932365.

The spelling of 666796093 in words is "six hundred sixty-six million, seven hundred ninety-six thousand, ninety-three".