630789822 has 32 divisors (see below), whose sum is σ = 1509584160. Its totient is φ = 194088960.

The previous prime is 630789821. The next prime is 630789851. The reversal of 630789822 is 228987036.

630789822 is a `hidden beast` number, since 630 + 7 + 8 + 9 + 8 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630789821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448579 + ... + 449982.

It is an arithmetic number, because the mean of its divisors is an integer number (47174505).

Almost surely, 2^630789822 is an apocalyptic number.

630789822 is an abundant number, since it is smaller than the sum of its proper divisors (878794338).

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

630789822 is a wasteful number, since it uses less digits than its factorization.

630789822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898585 (or 898579 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 630789822 is about 25115.5294986986. The cubic root of 630789822 is about 857.6199842873.

It can be divided in two parts, 63078 and 9822, that added together give a square (72900 = 270²).

The spelling of 630789822 in words is "six hundred thirty million, seven hundred eighty-nine thousand, eight hundred twenty-two".