68936 has 16 divisors (see below), whose sum is σ = 147840. Its totient is φ = 29520.

The previous prime is 68927. The next prime is 68947. The reversal of 68936 is 63986.

68936 = T₃₅ + T₃₆ + ... + T₇₆.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560 + ... + 671.

It is an arithmetic number, because the mean of its divisors is an integer number (9240).

2⁶⁸⁹³⁶ is an apocalyptic number.

It is an amenable number.

68936 is an abundant number, since it is smaller than the sum of its proper divisors (78904).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73920).

68936 is a wasteful number, since it uses less digits than its factorization.

68936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1240 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 68936 is about 262.5566605516. The cubic root of 68936 is about 41.0029742042.

Subtracting from 68936 its reverse (63986), we obtain a triangular number (4950 = T₉₉).

The spelling of 68936 in words is "sixty-eight thousand, nine hundred thirty-six".