665234323 has 8 divisors (see below), whose sum is σ = 729924048. Its totient is φ = 602475744.

The previous prime is 665234321. The next prime is 665234333. The reversal of 665234323 is 323432566.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 665234323 - 2¹ = 665234321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (665234321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482065 + ... + 483442.

It is an arithmetic number, because the mean of its divisors is an integer number (91240506).

Almost surely, 2^665234323 is an apocalyptic number.

665234323 is a deficient number, since it is larger than the sum of its proper divisors (64689725).

665234323 is a wasteful number, since it uses less digits than its factorization.

665234323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965573.

The product of its digits is 77760, while the sum is 34.

The square root of 665234323 is about 25792.1368443950. The cubic root of 665234323 is about 872.9543824165.

Adding to 665234323 its reverse (323432566), we get a palindrome (988666889).

The spelling of 665234323 in words is "six hundred sixty-five million, two hundred thirty-four thousand, three hundred twenty-three".