68426 has 4 divisors (see below), whose sum is σ = 102642. Its totient is φ = 34212.

The previous prime is 68399. The next prime is 68437. The reversal of 68426 is 62486.

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., 46225 + 22201 = 215^2 + 149^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68395 and 68404.

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, 17105 + ... + 17108.

2⁶⁸⁴²⁶ is an apocalyptic number.

68426 is a deficient number, since it is larger than the sum of its proper divisors (34216).

68426 is a wasteful number, since it uses less digits than its factorization.

68426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34215.

The product of its digits is 2304, while the sum is 26.

The square root of 68426 is about 261.5836386321. The cubic root of 68426 is about 40.9016082087.

It can be divided in two parts, 68 and 426, that added together give a palindrome (494).

The spelling of 68426 in words is "sixty-eight thousand, four hundred twenty-six".