630777888 has 192 divisors, whose sum is σ = 2006726400. Its totient is φ = 191600640.

The previous prime is 630777859. The next prime is 630777899. The reversal of 630777888 is 888777036.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 999333 + ... + 999963.

It is an arithmetic number, because the mean of its divisors is an integer number (10451700).

Almost surely, 2^630777888 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 630777888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1003363200).

630777888 is an abundant number, since it is smaller than the sum of its proper divisors (1375948512).

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

630777888 is a wasteful number, since it uses less digits than its factorization.

630777888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The square root of 630777888 is about 25115.2919154845. The cubic root of 630777888 is about 857.6145757761.

The spelling of 630777888 in words is "six hundred thirty million, seven hundred seventy-seven thousand, eight hundred eighty-eight".