423351889 has 16 divisors (see below), whose sum is σ = 449349120. Its totient is φ = 398198080.

The previous prime is 423351871. The next prime is 423351917. The reversal of 423351889 is 988153324.

It is a cyclic number.

It is not a de Polignac number, because 423351889 - 2⁵ = 423351857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423351809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357879 + ... + 359059.

It is an arithmetic number, because the mean of its divisors is an integer number (28084320).

Almost surely, 2^423351889 is an apocalyptic number.

It is an amenable number.

423351889 is a deficient number, since it is larger than the sum of its proper divisors (25997231).

423351889 is a wasteful number, since it uses less digits than its factorization.

423351889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520.

The product of its digits is 207360, while the sum is 43.

The square root of 423351889 is about 20575.5167371320. The cubic root of 423351889 is about 750.8741741783.

The spelling of 423351889 in words is "four hundred twenty-three million, three hundred fifty-one thousand, eight hundred eighty-nine".