629971828 has 12 divisors (see below), whose sum is σ = 1160474560. Its totient is φ = 298407672.

The previous prime is 629971819. The next prime is 629971829. The reversal of 629971828 is 828179926.

629971828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629971829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4144476 + ... + 4144627.

Almost surely, 2^629971828 is an apocalyptic number.

It is an amenable number.

629971828 is a deficient number, since it is larger than the sum of its proper divisors (530502732).

629971828 is a wasteful number, since it uses less digits than its factorization.

629971828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8289126 (or 8289124 counting only the distinct ones).

The product of its digits is 870912, while the sum is 52.

The square root of 629971828 is about 25099.2395900752. The cubic root of 629971828 is about 857.2491098494.

The spelling of 629971828 in words is "six hundred twenty-nine million, nine hundred seventy-one thousand, eight hundred twenty-eight".