654630 has 16 divisors (see below), whose sum is σ = 1571184. Its totient is φ = 174560.

The previous prime is 654629. The next prime is 654671. The reversal of 654630 is 36456.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 654630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10881 + ... + 10940.

It is an arithmetic number, because the mean of its divisors is an integer number (98199).

2⁶⁵⁴⁶³⁰ is an apocalyptic number.

654630 is an abundant number, since it is smaller than the sum of its proper divisors (916554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654630 is a wasteful number, since it uses less digits than its factorization.

654630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21831.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 654630 is about 809.0920837581. The cubic root of 654630 is about 86.8291003676.

The spelling of 654630 in words is "six hundred fifty-four thousand, six hundred thirty".