630886698 has 64 divisors (see below), whose sum is σ = 1513680000. Its totient is φ = 193622400.

The previous prime is 630886679. The next prime is 630886709. The reversal of 630886698 is 896688036.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 349398 + ... + 351198.

It is an arithmetic number, because the mean of its divisors is an integer number (23651250).

Almost surely, 2^630886698 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630886698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (756840000).

630886698 is an abundant number, since it is smaller than the sum of its proper divisors (882793302).

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

630886698 is a wasteful number, since it uses less digits than its factorization.

630886698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324 (or 2318 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 630886698 is about 25117.4580322134. The cubic root of 630886698 is about 857.6638861480.

The spelling of 630886698 in words is "six hundred thirty million, eight hundred eighty-six thousand, six hundred ninety-eight".