630647 has 8 divisors (see below), whose sum is σ = 655344. Its totient is φ = 606528.

The previous prime is 630613. The next prime is 630659. The reversal of 630647 is 746036.

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

It is a cyclic number.

It is not a de Polignac number, because 630647 - 2⁶ = 630583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 630647.

It is not an unprimeable number, because it can be changed into a prime (630607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3788 + ... + 3950.

It is an arithmetic number, because the mean of its divisors is an integer number (81918).

2⁶³⁰⁶⁴⁷ is an apocalyptic number.

630647 is a deficient number, since it is larger than the sum of its proper divisors (24697).

630647 is a wasteful number, since it uses less digits than its factorization.

630647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 630647 is about 794.1328604207. The cubic root of 630647 is about 85.7555252611.

The spelling of 630647 in words is "six hundred thirty thousand, six hundred forty-seven".