65830986 has 96 divisors (see below), whose sum is σ = 162162000. Its totient is φ = 19160064.

The previous prime is 65830969. The next prime is 65830993. The reversal of 65830986 is 68903856.

It can be written as a sum of positive squares in 8 ways, for example, as 17264025 + 48566961 = 4155^2 + 6969^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 603900 + ... + 604008.

Almost surely, 2^65830986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65830986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81081000).

65830986 is an abundant number, since it is smaller than the sum of its proper divisors (96331014).

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

65830986 is a wasteful number, since it uses less digits than its factorization.

65830986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 65830986 is about 8113.6296440003. The cubic root of 65830986 is about 403.7787444829.

The spelling of 65830986 in words is "sixty-five million, eight hundred thirty thousand, nine hundred eighty-six".