1983306065 has 32 divisors (see below), whose sum is σ = 2656281600. Its totient is φ = 1411695360.

The previous prime is 1983306049. The next prime is 1983306103. The reversal of 1983306065 is 5606033891.

It is not a de Polignac number, because 1983306065 - 2⁴ = 1983306049 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 540206 + ... + 543864.

It is an arithmetic number, because the mean of its divisors is an integer number (83008800).

Almost surely, 2^1983306065 is an apocalyptic number.

It is an amenable number.

1983306065 is a deficient number, since it is larger than the sum of its proper divisors (672975535).

1983306065 is a wasteful number, since it uses less digits than its factorization.

1983306065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 1983306065 is about 44534.3245710542. The cubic root of 1983306065 is about 1256.4057442774.

The spelling of 1983306065 in words is "one billion, nine hundred eighty-three million, three hundred six thousand, sixty-five".