623727216 has 200 divisors, whose sum is σ = 2079554400. Its totient is φ = 176795136.

The previous prime is 623727197. The next prime is 623727227. The reversal of 623727216 is 612727326.

It is a happy number.

623727216 is a `hidden beast` number, since 623 + 7 + 2 + 7 + 21 + 6 = 666.

It is a super-2 number, since 2×623727216² = 778071279958221312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 1787010 + ... + 1787358.

It is an arithmetic number, because the mean of its divisors is an integer number (10397772).

Almost surely, 2^623727216 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 623727216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1039777200).

623727216 is an abundant number, since it is smaller than the sum of its proper divisors (1455827184).

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

623727216 is a wasteful number, since it uses less digits than its factorization.

623727216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 558 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 623727216 is about 24974.5313469542. The cubic root of 623727216 is about 854.4071975786.

The spelling of 623727216 in words is "six hundred twenty-three million, seven hundred twenty-seven thousand, two hundred sixteen".