65189685 has 16 divisors (see below), whose sum is σ = 113785920. Its totient is φ = 31607040.

The previous prime is 65189681. The next prime is 65189689. The reversal of 65189685 is 58698156.

It is an interprime number because it is at equal distance from previous prime (65189681) and next prime (65189689).

It is not a de Polignac number, because 65189685 - 2² = 65189681 is a prime.

It is a super-3 number, since 3×65189685³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65189681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197380 + ... + 197709.

It is an arithmetic number, because the mean of its divisors is an integer number (7111620).

Almost surely, 2^65189685 is an apocalyptic number.

It is an amenable number.

65189685 is a deficient number, since it is larger than the sum of its proper divisors (48596235).

65189685 is a wasteful number, since it uses less digits than its factorization.

65189685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395108.

The product of its digits is 518400, while the sum is 48.

The square root of 65189685 is about 8074.0129427689. The cubic root of 65189685 is about 402.4633095421.

The spelling of 65189685 in words is "sixty-five million, one hundred eighty-nine thousand, six hundred eighty-five".