630959616 has 240 divisors, whose sum is σ = 2151671808. Its totient is φ = 174182400.

The previous prime is 630959611. The next prime is 630959617. The reversal of 630959616 is 616959036.

630959616 is a `hidden beast` number, since 630 + 9 + 5 + 9 + 6 + 1 + 6 = 666.

It is a super-2 number, since 2×630959616² = 796220074045734912, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630959611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 999621 + ... + 1000251.

Almost surely, 2^630959616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630959616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1075835904).

630959616 is an abundant number, since it is smaller than the sum of its proper divisors (1520712192).

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

630959616 is a wasteful number, since it uses less digits than its factorization.

630959616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 630959616 is about 25118.9095304713. The cubic root of 630959616 is about 857.6969278580.

The spelling of 630959616 in words is "six hundred thirty million, nine hundred fifty-nine thousand, six hundred sixteen".