647063003 has 4 divisors (see below), whose sum is σ = 647283768. Its totient is φ = 646842240.

The previous prime is 647062991. The next prime is 647063017. The reversal of 647063003 is 300360746.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 647063003 - 2⁴ = 647062987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (647063023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105926 + ... + 111867.

It is an arithmetic number, because the mean of its divisors is an integer number (161820942).

Almost surely, 2^647063003 is an apocalyptic number.

647063003 is a deficient number, since it is larger than the sum of its proper divisors (220765).

647063003 is a wasteful number, since it uses less digits than its factorization.

647063003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220764.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 647063003 is about 25437.4331055631. The cubic root of 647063003 is about 864.9324473068.

The spelling of 647063003 in words is "six hundred forty-seven million, sixty-three thousand, three".