423439589 has 8 divisors (see below), whose sum is σ = 428457600. Its totient is φ = 418444096.

The previous prime is 423439579. The next prime is 423439657. The reversal of 423439589 is 985934324.

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 423439589 - 2⁴ = 423439573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423439579) 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, 33812 + ... + 44610.

It is an arithmetic number, because the mean of its divisors is an integer number (53557200).

Almost surely, 2^423439589 is an apocalyptic number.

It is an amenable number.

423439589 is a deficient number, since it is larger than the sum of its proper divisors (5018011).

423439589 is a wasteful number, since it uses less digits than its factorization.

423439589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11259.

The product of its digits is 933120, while the sum is 47.

The square root of 423439589 is about 20577.6478004654. The cubic root of 423439589 is about 750.9260200305.

The spelling of 423439589 in words is "four hundred twenty-three million, four hundred thirty-nine thousand, five hundred eighty-nine".