68984 has 8 divisors (see below), whose sum is σ = 129360. Its totient is φ = 34488.

The previous prime is 68963. The next prime is 68993. The reversal of 68984 is 48986.

68984 = 58² + 59² + ... + 73².

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 9 and base 15.

It is a congruent number.

It is an unprimeable number.

68984 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4304 + ... + 4319.

It is an arithmetic number, because the mean of its divisors is an integer number (16170).

2⁶⁸⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

68984 is a deficient number, since it is larger than the sum of its proper divisors (60376).

68984 is a wasteful number, since it uses less digits than its factorization.

68984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8629 (or 8625 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 68984 is about 262.6480534860. The cubic root of 68984 is about 41.0124887594.

The spelling of 68984 in words is "sixty-eight thousand, nine hundred eighty-four".