423170289 has 12 divisors (see below), whose sum is σ = 613627716. Its totient is φ = 281014272.

The previous prime is 423170287. The next prime is 423170303. The reversal of 423170289 is 982071324.

It can be written as a sum of positive squares in 2 ways, for example, as 261371889 + 161798400 = 16167^2 + 12720^2 .

It is not a de Polignac number, because 423170289 - 2¹ = 423170287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423170287) by changing a digit.

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, 89164 + ... + 93789.

It is an arithmetic number, because the mean of its divisors is an integer number (51135643).

Almost surely, 2^423170289 is an apocalyptic number.

It is an amenable number.

423170289 is a deficient number, since it is larger than the sum of its proper divisors (190457427).

423170289 is a wasteful number, since it uses less digits than its factorization.

423170289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183216 (or 183213 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 423170289 is about 20571.1032518920. The cubic root of 423170289 is about 750.7667944346.

The spelling of 423170289 in words is "four hundred twenty-three million, one hundred seventy thousand, two hundred eighty-nine".