67716228 has 48 divisors (see below), whose sum is σ = 170213120. Its totient is φ = 20883744.

The previous prime is 67716221. The next prime is 67716239. The reversal of 67716228 is 82261776.

67716228 is nontrivially palindromic in base 8.

It is not an unprimeable number, because it can be changed into a prime (67716221) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 6351 + ... + 13257.

Almost surely, 2^67716228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67716228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85106560).

67716228 is an abundant number, since it is smaller than the sum of its proper divisors (102496892).

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

67716228 is a wasteful number, since it uses less digits than its factorization.

67716228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6976 (or 6974 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 67716228 is about 8228.9870579556. The cubic root of 67716228 is about 407.5969443282.

The spelling of 67716228 in words is "sixty-seven million, seven hundred sixteen thousand, two hundred twenty-eight".