68917228 has 24 divisors (see below), whose sum is σ = 126189504. Its totient is φ = 32899200.

The previous prime is 68917207. The next prime is 68917229. The reversal of 68917228 is 82271986.

It is not an unprimeable number, because it can be changed into a prime (68917229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3238 + ... + 12178.

It is an arithmetic number, because the mean of its divisors is an integer number (5257896).

Almost surely, 2^68917228 is an apocalyptic number.

It is an amenable number.

68917228 is a deficient number, since it is larger than the sum of its proper divisors (57272276).

68917228 is a wasteful number, since it uses less digits than its factorization.

68917228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9033 (or 9031 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 68917228 is about 8301.6400789242. The cubic root of 68917228 is about 409.9925201887.

The spelling of 68917228 in words is "sixty-eight million, nine hundred seventeen thousand, two hundred twenty-eight".