629728964 has 12 divisors (see below), whose sum is σ = 1103071788. Its totient is φ = 314565600.

The previous prime is 629728949. The next prime is 629729003. The reversal of 629728964 is 469827926.

It can be written as a sum of positive squares in 2 ways, for example, as 211935364 + 417793600 = 14558^2 + 20440^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 69947 + ... + 78434.

It is an arithmetic number, because the mean of its divisors is an integer number (91922649).

Almost surely, 2^629728964 is an apocalyptic number.

It is an amenable number.

629728964 is a deficient number, since it is larger than the sum of its proper divisors (473342824).

629728964 is a wasteful number, since it uses less digits than its factorization.

629728964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149446 (or 149444 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 53.

The square root of 629728964 is about 25094.4010488396. The cubic root of 629728964 is about 857.1389347069.

The spelling of 629728964 in words is "six hundred twenty-nine million, seven hundred twenty-eight thousand, nine hundred sixty-four".