65898 has 24 divisors (see below), whose sum is σ = 163488.
Its totient is φ = 18792.
The previous prime is 65881. The next prime is 65899. The reversal of 65898 is 89856.
It is an alternating number because its digits alternate between even and odd.
It is a Curzon number.
It is a plaindrome in base 11.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 65898.
It is not an unprimeable number, because it can be changed into a prime (65899) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136 + ... + 387.
It is an arithmetic number, because the mean of its divisors is an integer number (6812).
265898 is an apocalyptic number.
65898 is an abundant number, since it is smaller than the sum of its proper divisors (97590).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81744).
65898 is a wasteful number, since it uses less digits than its factorization.
65898 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 538 (or 535 counting only the distinct ones).
The product of its digits is 17280, while the sum is 36.
The square root of 65898 is about 256.7060575834.
The cubic root of 65898 is about 40.3915709631.
The spelling of 65898 in words is "sixty-five thousand, eight hundred ninety-eight".