65328243 has 4 divisors (see below), whose sum is σ = 87104328. Its totient is φ = 43552160.

The previous prime is 65328227. The next prime is 65328287. The reversal of 65328243 is 34282356.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65328243 - 2⁴ = 65328227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65328143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10888038 + ... + 10888043.

It is an arithmetic number, because the mean of its divisors is an integer number (21776082).

Almost surely, 2^65328243 is an apocalyptic number.

65328243 is a deficient number, since it is larger than the sum of its proper divisors (21776085).

65328243 is a wasteful number, since it uses less digits than its factorization.

65328243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21776084.

The product of its digits is 34560, while the sum is 33.

The square root of 65328243 is about 8082.5888798083. The cubic root of 65328243 is about 402.7482475117.

The spelling of 65328243 in words is "sixty-five million, three hundred twenty-eight thousand, two hundred forty-three".