623213712 has 120 divisors (see below), whose sum is σ = 1968445440. Its totient is φ = 182327040.

The previous prime is 623213687. The next prime is 623213743. The reversal of 623213712 is 217312326.

623213712 is a `hidden beast` number, since 623 + 2 + 1 + 37 + 1 + 2 = 666.

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 23 ways as a sum of consecutive naturals, for example, 39153 + ... + 52719.

It is an arithmetic number, because the mean of its divisors is an integer number (16403712).

Almost surely, 2^623213712 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 623213712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984222720).

623213712 is an abundant number, since it is smaller than the sum of its proper divisors (1345231728).

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

623213712 is a wasteful number, since it uses less digits than its factorization.

623213712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13621 (or 13612 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 623213712 is about 24964.2486768579. The cubic root of 623213712 is about 854.1726602358.

The spelling of 623213712 in words is "six hundred twenty-three million, two hundred thirteen thousand, seven hundred twelve".