66298 has 4 divisors (see below), whose sum is σ = 99450.
Its totient is φ = 33148.
The previous prime is 66293. The next prime is 66301. The reversal of 66298 is 89266.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89266 = 2 ⋅44633.
It can be written as a sum of positive squares in only one way, i.e., 34969 + 31329 = 187^2 + 177^2
It is a plaindrome in base 15.
It is not an unprimeable number, because it can be changed into a prime (66293) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16573 + ... + 16576.
266298 is an apocalyptic number.
66298 is a deficient number, since it is larger than the sum of its proper divisors (33152).
66298 is a wasteful number, since it uses less digits than its factorization.
66298 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33151.
The product of its digits is 5184, while the sum is 31.
The square root of 66298 is about 257.4839800842.
The cubic root of 66298 is about 40.4731315973.
The spelling of 66298 in words is "sixty-six thousand, two hundred ninety-eight".