629715996 has 144 divisors (see below), whose sum is σ = 1970562048. Its totient is φ = 165110400.

The previous prime is 629715991. The next prime is 629715997. The reversal of 629715996 is 699517926.

629715996 = 2409² + 2410² + ... + 2512².

629715996 is a `hidden beast` number, since 629 + 7 + 1 + 5 + 9 + 9 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629715991) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 690781 + ... + 691691.

Almost surely, 2^629715996 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 629715996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (985281024).

629715996 is an abundant number, since it is smaller than the sum of its proper divisors (1340846052).

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

629715996 is a wasteful number, since it uses less digits than its factorization.

629715996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 1147 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 54.

The square root of 629715996 is about 25094.1426631794. The cubic root of 629715996 is about 857.1330509831.

The spelling of 629715996 in words is "six hundred twenty-nine million, seven hundred fifteen thousand, nine hundred ninety-six".