630701688 has 32 divisors (see below), whose sum is σ = 1615214160. Its totient is φ = 205105920.

The previous prime is 630701623. The next prime is 630701689. The reversal of 630701688 is 886107036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630701689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319495 + ... + 321462.

Almost surely, 2^630701688 is an apocalyptic number.

It is an amenable number.

630701688 is an abundant number, since it is smaller than the sum of its proper divisors (984512472).

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

630701688 is a wasteful number, since it uses less digits than its factorization.

630701688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641007 (or 641003 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 630701688 is about 25113.7748655992. The cubic root of 630701688 is about 857.5800401846.

The spelling of 630701688 in words is "six hundred thirty million, seven hundred one thousand, six hundred eighty-eight".