83968668 has 36 divisors (see below), whose sum is σ = 242576880. Its totient is φ = 23990976.

The previous prime is 83968639. The next prime is 83968669. The reversal of 83968668 is 86686938.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83968669) 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, 166353 + ... + 166856.

Almost surely, 2^83968668 is an apocalyptic number.

It is an amenable number.

83968668 is an abundant number, since it is smaller than the sum of its proper divisors (158608212).

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

83968668 is a wasteful number, since it uses less digits than its factorization.

83968668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333226 (or 333221 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 83968668 is about 9163.4419297554. The cubic root of 83968668 is about 437.8974551959.

The spelling of 83968668 in words is "eighty-three million, nine hundred sixty-eight thousand, six hundred sixty-eight".