65685493 has 8 divisors (see below), whose sum is σ = 70905600. Its totient is φ = 60662448.

The previous prime is 65685479. The next prime is 65685509. The reversal of 65685493 is 39458656.

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

It is a cyclic number.

It is not a de Polignac number, because 65685493 - 2⁹ = 65684981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65685463) 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 7 ways as a sum of consecutive naturals, for example, 48573 + ... + 49906.

It is an arithmetic number, because the mean of its divisors is an integer number (8863200).

Almost surely, 2^65685493 is an apocalyptic number.

It is an amenable number.

65685493 is a deficient number, since it is larger than the sum of its proper divisors (5220107).

65685493 is a wasteful number, since it uses less digits than its factorization.

65685493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98531.

The product of its digits is 777600, while the sum is 46.

The square root of 65685493 is about 8104.6587219944. The cubic root of 65685493 is about 403.4810613981.

The spelling of 65685493 in words is "sixty-five million, six hundred eighty-five thousand, four hundred ninety-three".