630767676 has 144 divisors (see below), whose sum is σ = 1863787520. Its totient is φ = 162518400.

The previous prime is 630767651. The next prime is 630767701. The reversal of 630767676 is 676767036.

It is an interprime number because it is at equal distance from previous prime (630767651) and next prime (630767701).

It is a super-2 number, since 2×630767676² = 795735722172881952, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2327421 + ... + 2327691.

Almost surely, 2^630767676 is an apocalyptic number.

630767676 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 630767676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (931893760).

630767676 is an abundant number, since it is smaller than the sum of its proper divisors (1233019844).

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

630767676 is a wasteful number, since it uses less digits than its factorization.

630767676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 48.

The square root of 630767676 is about 25115.0886122267. The cubic root of 630767676 is about 857.6099476243.

The spelling of 630767676 in words is "six hundred thirty million, seven hundred sixty-seven thousand, six hundred seventy-six".