630547 has 8 divisors (see below), whose sum is σ = 691200. Its totient is φ = 572544.

The previous prime is 630529. The next prime is 630559. The reversal of 630547 is 745036.

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 630547 - 2¹¹ = 628499 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

630547 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (630577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147 + ... + 1132.

It is an arithmetic number, because the mean of its divisors is an integer number (86400).

2⁶³⁰⁵⁴⁷ is an apocalyptic number.

630547 is a deficient number, since it is larger than the sum of its proper divisors (60653).

630547 is a wasteful number, since it uses less digits than its factorization.

630547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 630547 is about 794.0698961678. The cubic root of 630547 is about 85.7509923471.

The spelling of 630547 in words is "six hundred thirty thousand, five hundred forty-seven".