68783616 has 240 divisors, whose sum is σ = 229806720. Its totient is φ = 19599360.

The previous prime is 68783599. The next prime is 68783633. The reversal of 68783616 is 61638786.

It is an interprime number because it is at equal distance from previous prime (68783599) and next prime (68783633).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1165795 + ... + 1165853.

It is an arithmetic number, because the mean of its divisors is an integer number (957528).

Almost surely, 2^68783616 is an apocalyptic number.

68783616 is a gapful number since it is divisible by the number (66) 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 68783616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114903360).

68783616 is an abundant number, since it is smaller than the sum of its proper divisors (161023104).

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

68783616 is a wasteful number, since it uses less digits than its factorization.

68783616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 98 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 68783616 is about 8293.5888492256. The cubic root of 68783616 is about 409.7273936422.

The spelling of 68783616 in words is "sixty-eight million, seven hundred eighty-three thousand, six hundred sixteen".