629744 has 10 divisors (see below), whose sum is σ = 1220160. Its totient is φ = 314864.

The previous prime is 629743. The next prime is 629747. The reversal of 629744 is 447926.

It is a self number, because there is not a number n which added to its sum of digits gives 629744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19664 + ... + 19695.

It is an arithmetic number, because the mean of its divisors is an integer number (122016).

629744 is a Friedman number, since it can be written as (9^4*6-7)*2^4, using all its digits and the basic arithmetic operations.

2⁶²⁹⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

629744 is a deficient number, since it is larger than the sum of its proper divisors (590416).

629744 is a wasteful number, since it uses less digits than its factorization.

629744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39367 (or 39361 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 629744 is about 793.5641120918. The cubic root of 629744 is about 85.7145756604.

The spelling of 629744 in words is "six hundred twenty-nine thousand, seven hundred forty-four".