65009886 has 8 divisors (see below), whose sum is σ = 130019784. Its totient is φ = 21669960.

The previous prime is 65009881. The next prime is 65009897. The reversal of 65009886 is 68890056.

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

65009886 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65009881) 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, 5417485 + ... + 5417496.

It is an arithmetic number, because the mean of its divisors is an integer number (16252473).

Almost surely, 2^65009886 is an apocalyptic number.

65009886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65009886 is a wasteful number, since it uses less digits than its factorization.

65009886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10834986.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 65009886 is about 8062.8708286813. The cubic root of 65009886 is about 402.0929588742.

The spelling of 65009886 in words is "sixty-five million, nine thousand, eight hundred eighty-six".