68428 has 6 divisors (see below), whose sum is σ = 119756. Its totient is φ = 34212.

The previous prime is 68399. The next prime is 68437. The reversal of 68428 is 82486.

It is a plaindrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 68396 and 68405.

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, 8550 + ... + 8557.

2⁶⁸⁴²⁸ is an apocalyptic number.

It is an amenable number.

68428 is a deficient number, since it is larger than the sum of its proper divisors (51328).

68428 is a wasteful number, since it uses less digits than its factorization.

68428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17111 (or 17109 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 68428 is about 261.5874614732. The cubic root of 68428 is about 40.9020067045.

Subtracting from 68428 its product of digits (3072), we obtain a palindrome (65356).

It can be divided in two parts, 68 and 428, that added together give a triangular number (496 = T₃₁).

The spelling of 68428 in words is "sixty-eight thousand, four hundred twenty-eight".