65284219 has 40 divisors (see below), whose sum is σ = 90188000. Its totient is φ = 46957680.

The previous prime is 65284217. The next prime is 65284229. The reversal of 65284219 is 91248256.

It is not a de Polignac number, because 65284219 - 2¹ = 65284217 is a prime.

It is a super-2 number, since 2×65284219² = 8524058500879922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65284217) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5021857 + ... + 5021869.

It is an arithmetic number, because the mean of its divisors is an integer number (2254700).

Almost surely, 2^65284219 is an apocalyptic number.

65284219 is a deficient number, since it is larger than the sum of its proper divisors (24903781).

65284219 is an frugal number, since it uses more digits than its factorization.

65284219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 31 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 65284219 is about 8079.8650360015. The cubic root of 65284219 is about 402.6577579452.

The spelling of 65284219 in words is "sixty-five million, two hundred eighty-four thousand, two hundred nineteen".