68938 has 4 divisors (see below), whose sum is σ = 103410. Its totient is φ = 34468.

The previous prime is 68927. The next prime is 68947. The reversal of 68938 is 83986.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 56169 + 12769 = 237^2 + 113^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17233 + ... + 17236.

2⁶⁸⁹³⁸ is an apocalyptic number.

68938 is a deficient number, since it is larger than the sum of its proper divisors (34472).

68938 is a wasteful number, since it uses less digits than its factorization.

68938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34471.

The product of its digits is 10368, while the sum is 34.

The square root of 68938 is about 262.5604692257. The cubic root of 68938 is about 41.0033707322.

It can be divided in two parts, 689 and 38, that added together give a palindrome (727).

The spelling of 68938 in words is "sixty-eight thousand, nine hundred thirty-eight".