623727616 has 88 divisors (see below), whose sum is σ = 1322918784. Its totient is φ = 293314560.

The previous prime is 623727613. The next prime is 623727617. The reversal of 623727616 is 616727326.

It is a super-2 number, since 2×623727616² = 778072277922086912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623727613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1672006 + ... + 1672378.

It is an arithmetic number, because the mean of its divisors is an integer number (15033168).

Almost surely, 2^623727616 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 623727616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661459392).

623727616 is an abundant number, since it is smaller than the sum of its proper divisors (699191168).

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

623727616 is a wasteful number, since it uses less digits than its factorization.

623727616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 469 counting only the distinct ones).

The product of its digits is 127008, while the sum is 40.

The square root of 623727616 is about 24974.5393551112. The cubic root of 623727616 is about 854.4073802240.

The spelling of 623727616 in words is "six hundred twenty-three million, seven hundred twenty-seven thousand, six hundred sixteen".