663005347 has 8 divisors (see below), whose sum is σ = 679605696. Its totient is φ = 646458792.

The previous prime is 663005341. The next prime is 663005363. The reversal of 663005347 is 743500366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-663005347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663005341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12108 + ... + 38374.

It is an arithmetic number, because the mean of its divisors is an integer number (84950712).

Almost surely, 2^663005347 is an apocalyptic number.

663005347 is a deficient number, since it is larger than the sum of its proper divisors (16600349).

663005347 is a wasteful number, since it uses less digits than its factorization.

663005347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26897.

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 663005347 is about 25748.8902090944. The cubic root of 663005347 is about 871.9782994593.

The spelling of 663005347 in words is "six hundred sixty-three million, five thousand, three hundred forty-seven".