423423523 has 8 divisors (see below), whose sum is σ = 445475520. Its totient is φ = 401929920.

The previous prime is 423423521. The next prime is 423423529. The reversal of 423423523 is 325324324.

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

It is a cyclic number.

It is not a de Polignac number, because 423423523 - 2¹ = 423423521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423423491 and 423423500.

It is not an unprimeable number, because it can be changed into a prime (423423521) 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, 138043 + ... + 141076.

It is an arithmetic number, because the mean of its divisors is an integer number (55684440).

Almost surely, 2^423423523 is an apocalyptic number.

423423523 is a deficient number, since it is larger than the sum of its proper divisors (22051997).

423423523 is a wasteful number, since it uses less digits than its factorization.

423423523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279197.

The product of its digits is 17280, while the sum is 28.

The square root of 423423523 is about 20577.2574217265. The cubic root of 423423523 is about 750.9165227843.

Adding to 423423523 its reverse (325324324), we get a palindrome (748747847).

The spelling of 423423523 in words is "four hundred twenty-three million, four hundred twenty-three thousand, five hundred twenty-three".