666713303 has 2 divisors, whose sum is σ = 666713304. Its totient is φ = 666713302.

The previous prime is 666713269. The next prime is 666713309. The reversal of 666713303 is 303317666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 666713303 - 2¹⁰ = 666712279 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (666713309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333356651 + 333356652.

It is an arithmetic number, because the mean of its divisors is an integer number (333356652).

Almost surely, 2^666713303 is an apocalyptic number.

666713303 is a deficient number, since it is larger than the sum of its proper divisors (1).

666713303 is an equidigital number, since it uses as much as digits as its factorization.

666713303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 35.

The square root of 666713303 is about 25820.7920676342. The cubic root of 666713303 is about 873.6008345562.

The spelling of 666713303 in words is "six hundred sixty-six million, seven hundred thirteen thousand, three hundred three".