65889868 has 24 divisors (see below), whose sum is σ = 126123984. Its totient is φ = 29870400.

The previous prime is 65889847. The next prime is 65889881. The reversal of 65889868 is 86898856.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16746 + ... + 20302.

It is an arithmetic number, because the mean of its divisors is an integer number (5255166).

Almost surely, 2^65889868 is an apocalyptic number.

It is an amenable number.

65889868 is a deficient number, since it is larger than the sum of its proper divisors (60234116).

65889868 is a wasteful number, since it uses less digits than its factorization.

65889868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993 (or 3991 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 58.

The square root of 65889868 is about 8117.2574186113. The cubic root of 65889868 is about 403.8990941665.

The spelling of 65889868 in words is "sixty-five million, eight hundred eighty-nine thousand, eight hundred sixty-eight".