65998982 has 12 divisors (see below), whose sum is σ = 115161660. Its totient is φ = 28285236.

The previous prime is 65998963. The next prime is 65998997. The reversal of 65998982 is 28989956.

65998982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 336632 + ... + 336827.

It is an arithmetic number, because the mean of its divisors is an integer number (9596805).

Almost surely, 2^65998982 is an apocalyptic number.

65998982 is a deficient number, since it is larger than the sum of its proper divisors (49162678).

65998982 is a wasteful number, since it uses less digits than its factorization.

65998982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673475 (or 673468 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 56.

The square root of 65998982 is about 8123.9757508255. The cubic root of 65998982 is about 404.1219242827.

The spelling of 65998982 in words is "sixty-five million, nine hundred ninety-eight thousand, nine hundred eighty-two".