68843616 has 48 divisors (see below), whose sum is σ = 182602224. Its totient is φ = 22708224.

The previous prime is 68843609. The next prime is 68843629. The reversal of 68843616 is 61634886.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5616 + ... + 13008.

It is an arithmetic number, because the mean of its divisors is an integer number (3804213).

Almost surely, 2^68843616 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 68843616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91301112).

68843616 is an abundant number, since it is smaller than the sum of its proper divisors (113758608).

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

68843616 is a wasteful number, since it uses less digits than its factorization.

68843616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7503 (or 7495 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 68843616 is about 8297.2053126339. The cubic root of 68843616 is about 409.8464941897.

The spelling of 68843616 in words is "sixty-eight million, eight hundred forty-three thousand, six hundred sixteen".