68823616 has 63 divisors (see below), whose sum is σ = 147495387. Its totient is φ = 31856640.

The previous prime is 68823593. The next prime is 68823617. The reversal of 68823616 is 61632886.

The square root of 68823616 is 8296.

It is a perfect power (a square), and thus also a powerful number.

68823616 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in 4 ways, for example, as 6350400 + 62473216 = 2520^2 + 7904^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68823617) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1128226 + ... + 1128286.

Almost surely, 2^68823616 is an apocalyptic number.

68823616 is the 8296-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68823616

68823616 is an abundant number, since it is smaller than the sum of its proper divisors (78671771).

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

68823616 is an equidigital number, since it uses as much as digits as its factorization.

68823616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 80 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The cubic root of 68823616 is about 409.8068016989.

Multiplying 68823616 by its product of digits (82944), we get a square (5708506005504 = 2389248²).

The spelling of 68823616 in words is "sixty-eight million, eight hundred twenty-three thousand, six hundred sixteen".