629807916 has 24 divisors (see below), whose sum is σ = 1471841280. Its totient is φ = 209608912.

The previous prime is 629807911. The next prime is 629807917. The reversal of 629807916 is 619708926.

It is a super-2 number, since 2×629807916² = 793316022112526112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (629807911) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 32796 + ... + 48323.

It is an arithmetic number, because the mean of its divisors is an integer number (61326720).

Almost surely, 2^629807916 is an apocalyptic number.

It is an amenable number.

629807916 is an abundant number, since it is smaller than the sum of its proper divisors (842033364).

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

629807916 is a wasteful number, since it uses less digits than its factorization.

629807916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81773 (or 81771 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 629807916 is about 25095.9740994447. The cubic root of 629807916 is about 857.1747543527.

The spelling of 629807916 in words is "six hundred twenty-nine million, eight hundred seven thousand, nine hundred sixteen".