423989575 has 12 divisors (see below), whose sum is σ = 526013208. Its totient is φ = 339020000.

The previous prime is 423989561. The next prime is 423989581. The reversal of 423989575 is 575989324.

It is not a de Polignac number, because 423989575 - 2⁵ = 423989543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74325 + ... + 79825.

It is an arithmetic number, because the mean of its divisors is an integer number (43834434).

Almost surely, 2^423989575 is an apocalyptic number.

423989575 is a deficient number, since it is larger than the sum of its proper divisors (102023633).

423989575 is a wasteful number, since it uses less digits than its factorization.

423989575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8594 (or 8589 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 52.

The square root of 423989575 is about 20591.0071390401. The cubic root of 423989575 is about 751.2509936744.

The spelling of 423989575 in words is "four hundred twenty-three million, nine hundred eighty-nine thousand, five hundred seventy-five".