629909604 has 81 divisors (see below), whose sum is σ = 1645355257. Its totient is φ = 203193408.

The previous prime is 629909597. The next prime is 629909617. The reversal of 629909604 is 406909926.

The square root of 629909604 is 25098.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 120956004 + 508953600 = 10998^2 + 22560^2 .

It is a super-2 number, since 2×629909604² = 793572218422873632, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 629909604.

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 26 ways as a sum of consecutive naturals, for example, 7077592 + ... + 7077680.

Almost surely, 2^629909604 is an apocalyptic number.

629909604 is the 25098-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 629909604

629909604 is an abundant number, since it is smaller than the sum of its proper divisors (1015445653).

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

629909604 is a wasteful number, since it uses less digits than its factorization.

629909604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The cubic root of 629909604 is about 857.2208846587.

The spelling of 629909604 in words is "six hundred twenty-nine million, nine hundred nine thousand, six hundred four".