68608818 has 24 divisors (see below), whose sum is σ = 151459308. Its totient is φ = 22437792.

The previous prime is 68608817. The next prime is 68608823. The reversal of 68608818 is 81880686.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68608089 + 729 = 8283^2 + 27^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68608811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35005 + ... + 36912.

Almost surely, 2^68608818 is an apocalyptic number.

68608818 is an abundant number, since it is smaller than the sum of its proper divisors (82850490).

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

68608818 is a wasteful number, since it uses less digits than its factorization.

68608818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71978 (or 71975 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The square root of 68608818 is about 8283.0440056781. The cubic root of 68608818 is about 409.3800227265.

The spelling of 68608818 in words is "sixty-eight million, six hundred eight thousand, eight hundred eighteen".