68828356 has 12 divisors (see below), whose sum is σ = 120564220. Its totient is φ = 34381440.

The previous prime is 68828341. The next prime is 68828447. The reversal of 68828356 is 65382886.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28302400 + 40525956 = 5320^2 + 6366^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3105 + ... + 12136.

Almost surely, 2^68828356 is an apocalyptic number.

It is an amenable number.

68828356 is a deficient number, since it is larger than the sum of its proper divisors (51735864).

68828356 is a wasteful number, since it uses less digits than its factorization.

68828356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16374 (or 16372 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The square root of 68828356 is about 8296.2856749271. The cubic root of 68828356 is about 409.8162095144.

The spelling of 68828356 in words is "sixty-eight million, eight hundred twenty-eight thousand, three hundred fifty-six".