68812828 has 24 divisors (see below), whose sum is σ = 137821824. Its totient is φ = 29449200.

The previous prime is 68812823. The next prime is 68812837. The reversal of 68812828 is 82821886.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68812823) 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 7 ways as a sum of consecutive naturals, for example, 25923 + ... + 28453.

It is an arithmetic number, because the mean of its divisors is an integer number (5742576).

Almost surely, 2^68812828 is an apocalyptic number.

It is an amenable number.

68812828 is an abundant number, since it is smaller than the sum of its proper divisors (69008996).

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

68812828 is a wasteful number, since it uses less digits than its factorization.

68812828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3513 (or 3511 counting only the distinct ones).

The product of its digits is 98304, while the sum is 43.

The square root of 68812828 is about 8295.3497816548. The cubic root of 68812828 is about 409.7853883767.

The spelling of 68812828 in words is "sixty-eight million, eight hundred twelve thousand, eight hundred twenty-eight".