423300665 has 8 divisors (see below), whose sum is σ = 517545288. Its totient is φ = 332250880.

The previous prime is 423300649. The next prime is 423300673. The reversal of 423300665 is 566003324.

It can be written as a sum of positive squares in 4 ways, for example, as 56310016 + 366990649 = 7504^2 + 19157^2 .

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

It is not a de Polignac number, because 423300665 - 2⁴ = 423300649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798416 + ... + 798945.

It is an arithmetic number, because the mean of its divisors is an integer number (64693161).

Almost surely, 2^423300665 is an apocalyptic number.

It is an amenable number.

423300665 is a deficient number, since it is larger than the sum of its proper divisors (94244623).

423300665 is a wasteful number, since it uses less digits than its factorization.

423300665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1597419.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 423300665 is about 20574.2719190741. The cubic root of 423300665 is about 750.8438886317.

Adding to 423300665 its reverse (566003324), we get a palindrome (989303989).

The spelling of 423300665 in words is "four hundred twenty-three million, three hundred thousand, six hundred sixty-five".