67968684 has 108 divisors (see below), whose sum is σ = 203911344. Its totient is φ = 19027008.

The previous prime is 67968683. The next prime is 67968707. The reversal of 67968684 is 48686976.

It is a self number, because there is not a number n which added to its sum of digits gives 67968684.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67968683) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 93129 + ... + 93855.

It is an arithmetic number, because the mean of its divisors is an integer number (1888068).

Almost surely, 2^67968684 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 67968684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101955672).

67968684 is an abundant number, since it is smaller than the sum of its proper divisors (135942660).

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

67968684 is a wasteful number, since it uses less digits than its factorization.

67968684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804 (or 792 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 67968684 is about 8244.3122211619. The cubic root of 67968684 is about 408.1028431633.

The spelling of 67968684 in words is "sixty-seven million, nine hundred sixty-eight thousand, six hundred eighty-four".