423313565 has 8 divisors (see below), whose sum is σ = 508918488. Its totient is φ = 338022720.

The previous prime is 423313547. The next prime is 423313567. The reversal of 423313565 is 565313324.

It can be written as a sum of positive squares in 4 ways, for example, as 81396484 + 341917081 = 9022^2 + 18491^2 .

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

It is not a de Polignac number, because 423313565 - 2⁸ = 423313309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423313567) 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, 75542 + ... + 80951.

It is an arithmetic number, because the mean of its divisors is an integer number (63614811).

Almost surely, 2^423313565 is an apocalyptic number.

It is an amenable number.

423313565 is a deficient number, since it is larger than the sum of its proper divisors (85604923).

423313565 is a wasteful number, since it uses less digits than its factorization.

423313565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157039.

The product of its digits is 32400, while the sum is 32.

The square root of 423313565 is about 20574.5854150211. The cubic root of 423313565 is about 750.8515158248.

Adding to 423313565 its reverse (565313324), we get a palindrome (988626889).

The spelling of 423313565 in words is "four hundred twenty-three million, three hundred thirteen thousand, five hundred sixty-five".