663079147 has 2 divisors, whose sum is σ = 663079148. Its totient is φ = 663079146.

The previous prime is 663079139. The next prime is 663079189. The reversal of 663079147 is 741970366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 663079147 - 2³ = 663079139 is a prime.

It is not a weakly prime, because it can be changed into another prime (663077147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331539573 + 331539574.

It is an arithmetic number, because the mean of its divisors is an integer number (331539574).

Almost surely, 2^663079147 is an apocalyptic number.

663079147 is a deficient number, since it is larger than the sum of its proper divisors (1).

663079147 is an equidigital number, since it uses as much as digits as its factorization.

663079147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 663079147 is about 25750.3232406896. The cubic root of 663079147 is about 872.0106519439.

The spelling of 663079147 in words is "six hundred sixty-three million, seventy-nine thousand, one hundred forty-seven".