431232673 has 4 divisors (see below), whose sum is σ = 431392068. Its totient is φ = 431073280.

The previous prime is 431232647. The next prime is 431232689. The reversal of 431232673 is 376232134.

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 242362624 + 188870049 = 15568^2 + 13743^2 .

It is a cyclic number.

It is not a de Polignac number, because 431232673 - 2⁹ = 431232161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431232073) 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 3 ways as a sum of consecutive naturals, for example, 75568 + ... + 81073.

It is an arithmetic number, because the mean of its divisors is an integer number (107848017).

Almost surely, 2^431232673 is an apocalyptic number.

It is an amenable number.

431232673 is a deficient number, since it is larger than the sum of its proper divisors (159395).

431232673 is a wasteful number, since it uses less digits than its factorization.

431232673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159394.

The product of its digits is 18144, while the sum is 31.

The square root of 431232673 is about 20766.1424679693. The cubic root of 431232673 is about 755.5047853052.

It can be divided in two parts, 43123 and 2673, that added together give a square (45796 = 214²).

The spelling of 431232673 in words is "four hundred thirty-one million, two hundred thirty-two thousand, six hundred seventy-three".