423346565 has 4 divisors (see below), whose sum is σ = 508015884. Its totient is φ = 338677248.

The previous prime is 423346559. The next prime is 423346589. The reversal of 423346565 is 565643324.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 175536001 + 247810564 = 13249^2 + 15742^2 .

It is a cyclic number.

It is not a de Polignac number, because 423346565 - 2¹⁴ = 423330181 is a prime.

It is a super-3 number, since 3×423346565³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42334652 + ... + 42334661.

It is an arithmetic number, because the mean of its divisors is an integer number (127003971).

Almost surely, 2^423346565 is an apocalyptic number.

It is an amenable number.

423346565 is a deficient number, since it is larger than the sum of its proper divisors (84669319).

423346565 is an equidigital number, since it uses as much as digits as its factorization.

423346565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84669318.

The product of its digits is 259200, while the sum is 38.

The square root of 423346565 is about 20575.3873596586. The cubic root of 423346565 is about 750.8710265439.

Adding to 423346565 its reverse (565643324), we get a palindrome (988989889).

The spelling of 423346565 in words is "four hundred twenty-three million, three hundred forty-six thousand, five hundred sixty-five".