65740085 has 8 divisors (see below), whose sum is σ = 79008696. Its totient is φ = 52511680.

The previous prime is 65740079. The next prime is 65740159. The reversal of 65740085 is 58004756.

It can be written as a sum of positive squares in 4 ways, for example, as 46362481 + 19377604 = 6809^2 + 4402^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65740085 - 2⁴ = 65740069 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 6326 + ... + 13095.

It is an arithmetic number, because the mean of its divisors is an integer number (9876087).

Almost surely, 2^65740085 is an apocalyptic number.

It is an amenable number.

65740085 is a deficient number, since it is larger than the sum of its proper divisors (13268611).

65740085 is a wasteful number, since it uses less digits than its factorization.

65740085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20103.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 65740085 is about 8108.0259619713. The cubic root of 65740085 is about 403.5928097597.

The spelling of 65740085 in words is "sixty-five million, seven hundred forty thousand, eighty-five".