68841808 has 20 divisors (see below), whose sum is σ = 152435680. Its totient is φ = 29503584.

The previous prime is 68841791. The next prime is 68841809. The reversal of 68841808 is 80814886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68841809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307218 + ... + 307441.

It is an arithmetic number, because the mean of its divisors is an integer number (7621784).

Almost surely, 2^68841808 is an apocalyptic number.

It is an amenable number.

68841808 is an abundant number, since it is smaller than the sum of its proper divisors (83593872).

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

68841808 is a wasteful number, since it uses less digits than its factorization.

68841808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614674 (or 614668 counting only the distinct ones).

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

The square root of 68841808 is about 8297.0963595706. The cubic root of 68841808 is about 409.8429063046.

The spelling of 68841808 in words is "sixty-eight million, eight hundred forty-one thousand, eight hundred eight".