629909964 has 36 divisors (see below), whose sum is σ = 1676078040. Its totient is φ = 198918720.

The previous prime is 629909923. The next prime is 629909977. The reversal of 629909964 is 469909926.

629909964 is a `hidden beast` number, since 629 + 9 + 0 + 9 + 9 + 6 + 4 = 666.

629909964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 629909964.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 459777 + ... + 461144.

Almost surely, 2^629909964 is an apocalyptic number.

It is an amenable number.

629909964 is an abundant number, since it is smaller than the sum of its proper divisors (1046168076).

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

629909964 is a wasteful number, since it uses less digits than its factorization.

629909964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920950 (or 920945 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 54.

The square root of 629909964 is about 25098.0071718852. The cubic root of 629909964 is about 857.2210479622.

The spelling of 629909964 in words is "six hundred twenty-nine million, nine hundred nine thousand, nine hundred sixty-four".