65983085 has 16 divisors (see below), whose sum is σ = 90652800. Its totient is φ = 45164736.

The previous prime is 65983081. The next prime is 65983109. The reversal of 65983085 is 58038956.

65983085 = 1356² + 1357² + ... + 1390².

It is a cyclic number.

It is not a de Polignac number, because 65983085 - 2² = 65983081 is a prime.

It is a super-2 number, since 2×65983085² = 8707535012234450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65983081) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 23486 + ... + 26144.

It is an arithmetic number, because the mean of its divisors is an integer number (5665800).

Almost surely, 2^65983085 is an apocalyptic number.

It is an amenable number.

65983085 is a deficient number, since it is larger than the sum of its proper divisors (24669715).

65983085 is a wasteful number, since it uses less digits than its factorization.

65983085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 65983085 is about 8122.9972916406. The cubic root of 65983085 is about 404.0894750847.

Adding to 65983085 its sum of digits (44), we get a square (65983129 = 8123²).

The spelling of 65983085 in words is "sixty-five million, nine hundred eighty-three thousand, eighty-five".