629984 has 12 divisors (see below), whose sum is σ = 1240344. Its totient is φ = 314976.

The previous prime is 629977. The next prime is 629987. The reversal of 629984 is 489926.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629987) by changing a digit.

629984 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9812 + ... + 9875.

It is an arithmetic number, because the mean of its divisors is an integer number (103362).

2⁶²⁹⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

629984 is a deficient number, since it is larger than the sum of its proper divisors (610360).

629984 is a wasteful number, since it uses less digits than its factorization.

629984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19697 (or 19689 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 629984 is about 793.7153142028. The cubic root of 629984 is about 85.7254630926.

The spelling of 629984 in words is "six hundred twenty-nine thousand, nine hundred eighty-four".