629974968 has 96 divisors (see below), whose sum is σ = 1911807360. Its totient is φ = 172159680.

The previous prime is 629974879. The next prime is 629974979. The reversal of 629974968 is 869479926.

629974968 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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15403 + ... + 38693.

It is an arithmetic number, because the mean of its divisors is an integer number (19914660).

Almost surely, 2^629974968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 629974968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (955903680).

629974968 is an abundant number, since it is smaller than the sum of its proper divisors (1281832392).

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

629974968 is a wasteful number, since it uses less digits than its factorization.

629974968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23337 (or 23326 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 60.

The square root of 629974968 is about 25099.3021416931. The cubic root of 629974968 is about 857.2505341235.

The spelling of 629974968 in words is "six hundred twenty-nine million, nine hundred seventy-four thousand, nine hundred sixty-eight".