68929828 has 36 divisors (see below), whose sum is σ = 133929936. Its totient is φ = 31038920.

The previous prime is 68929823. The next prime is 68929829. The reversal of 68929828 is 82892986.

It is not an unprimeable number, because it can be changed into a prime (68929823) 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, 644151 + ... + 644257.

It is an arithmetic number, because the mean of its divisors is an integer number (3720276).

Almost surely, 2^68929828 is an apocalyptic number.

It is an amenable number.

68929828 is a deficient number, since it is larger than the sum of its proper divisors (65000108).

68929828 is an equidigital number, since it uses as much as digits as its factorization.

68929828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 120 counting only the distinct ones).

The product of its digits is 995328, while the sum is 52.

The square root of 68929828 is about 8302.3989304297. The cubic root of 68929828 is about 410.0175047057.

The spelling of 68929828 in words is "sixty-eight million, nine hundred twenty-nine thousand, eight hundred twenty-eight".