65323218 has 16 divisors (see below), whose sum is σ = 131916096. Its totient is φ = 21562800.

The previous prime is 65323217. The next prime is 65323249. The reversal of 65323218 is 81232356.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65323213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52233 + ... + 53468.

It is an arithmetic number, because the mean of its divisors is an integer number (8244756).

Almost surely, 2^65323218 is an apocalyptic number.

65323218 is an abundant number, since it is smaller than the sum of its proper divisors (66592878).

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

65323218 is a wasteful number, since it uses less digits than its factorization.

65323218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105809.

The product of its digits is 8640, while the sum is 30.

The square root of 65323218 is about 8082.2780204593. The cubic root of 65323218 is about 402.7379208814.

It can be divided in two parts, 653 and 23218, that added together give a triangular number (23871 = T₂₁₈).

The spelling of 65323218 in words is "sixty-five million, three hundred twenty-three thousand, two hundred eighteen".