423231169 has 4 divisors (see below), whose sum is σ = 423828820. Its totient is φ = 422633520.

The previous prime is 423231143. The next prime is 423231173. The reversal of 423231169 is 961132324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 262828944 + 160402225 = 16212^2 + 12665^2 .

It is a cyclic number.

It is not a de Polignac number, because 423231169 - 2⁷ = 423231041 is a prime.

It is a super-3 number, since 3×423231169³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423231169.

It is not an unprimeable number, because it can be changed into a prime (423231769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297762 + ... + 299179.

It is an arithmetic number, because the mean of its divisors is an integer number (105957205).

Almost surely, 2^423231169 is an apocalyptic number.

It is an amenable number.

423231169 is a deficient number, since it is larger than the sum of its proper divisors (597651).

423231169 is an equidigital number, since it uses as much as digits as its factorization.

423231169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597650.

The product of its digits is 7776, while the sum is 31.

The square root of 423231169 is about 20572.5829442975. The cubic root of 423231169 is about 750.8027960884.

The spelling of 423231169 in words is "four hundred twenty-three million, two hundred thirty-one thousand, one hundred sixty-nine".