663703147 has 2 divisors, whose sum is σ = 663703148. Its totient is φ = 663703146.

The previous prime is 663703141. The next prime is 663703163. The reversal of 663703147 is 741307366.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-663703147 is a prime.

It is not a weakly prime, because it can be changed into another prime (663703141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331851573 + 331851574.

It is an arithmetic number, because the mean of its divisors is an integer number (331851574).

Almost surely, 2^663703147 is an apocalyptic number.

663703147 is a deficient number, since it is larger than the sum of its proper divisors (1).

663703147 is an equidigital number, since it uses as much as digits as its factorization.

663703147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 663703147 is about 25762.4367442212. The cubic root of 663703147 is about 872.2841054977.

The spelling of 663703147 in words is "six hundred sixty-three million, seven hundred three thousand, one hundred forty-seven".