623985960 has 128 divisors (see below), whose sum is σ = 2054263680. Its totient is φ = 150678528.

The previous prime is 623985919. The next prime is 623985991. The reversal of 623985960 is 69589326.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 78907 + ... + 86453.

It is an arithmetic number, because the mean of its divisors is an integer number (16048935).

Almost surely, 2^623985960 is an apocalyptic number.

623985960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623985960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1027131840).

623985960 is an abundant number, since it is smaller than the sum of its proper divisors (1430277720).

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

623985960 is a wasteful number, since it uses less digits than its factorization.

623985960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7627 (or 7623 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 623985960 is about 24979.7109671029. The cubic root of 623985960 is about 854.5253273035.

The spelling of 623985960 in words is "six hundred twenty-three million, nine hundred eighty-five thousand, nine hundred sixty".