68656392 has 48 divisors (see below), whose sum is σ = 212509440. Its totient is φ = 19615968.

The previous prime is 68656391. The next prime is 68656417. The reversal of 68656392 is 29365686.

It is a happy number.

68656392 is a `hidden beast` number, since 6 + 8 + 6 + 5 + 639 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (68656391) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 67608 + ... + 68615.

It is an arithmetic number, because the mean of its divisors is an integer number (4427280).

Almost surely, 2^68656392 is an apocalyptic number.

It is an amenable number.

68656392 is an abundant number, since it is smaller than the sum of its proper divisors (143853048).

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

68656392 is a wasteful number, since it uses less digits than its factorization.

68656392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136242 (or 136235 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 68656392 is about 8285.9152783504. The cubic root of 68656392 is about 409.4746235175.

The spelling of 68656392 in words is "sixty-eight million, six hundred fifty-six thousand, three hundred ninety-two".