630216 has 24 divisors (see below), whose sum is σ = 1707030. Its totient is φ = 210048.

The previous prime is 630197. The next prime is 630229. The reversal of 630216 is 612036.

It is a happy number.

630216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 427716 + 202500 = 654^2 + 450^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4305 + ... + 4448.

2⁶³⁰²¹⁶ is an apocalyptic number.

It is an amenable number.

630216 is an abundant number, since it is smaller than the sum of its proper divisors (1076814).

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

630216 is a wasteful number, since it uses less digits than its factorization.

630216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8765 (or 8758 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 630216 is about 793.8614488688. The cubic root of 630216 is about 85.7359849824.

The spelling of 630216 in words is "six hundred thirty thousand, two hundred sixteen".