65685386 has 8 divisors (see below), whose sum is σ = 106107204. Its totient is φ = 30316320.

The previous prime is 65685383. The next prime is 65685439. The reversal of 65685386 is 68358656.

It can be written as a sum of positive squares in 2 ways, for example, as 50623225 + 15062161 = 7115^2 + 3881^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 65685386.

It is not an unprimeable number, because it can be changed into a prime (65685383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263155 + ... + 1263206.

Almost surely, 2^65685386 is an apocalyptic number.

65685386 is a deficient number, since it is larger than the sum of its proper divisors (40421818).

65685386 is a wasteful number, since it uses less digits than its factorization.

65685386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526376.

The product of its digits is 1036800, while the sum is 47.

The square root of 65685386 is about 8104.6521208501. The cubic root of 65685386 is about 403.4808423112.

The spelling of 65685386 in words is "sixty-five million, six hundred eighty-five thousand, three hundred eighty-six".