1726423643 has 8 divisors (see below), whose sum is σ = 2010283488. Its totient is φ = 1451870784.

The previous prime is 1726423637. The next prime is 1726423651. The reversal of 1726423643 is 3463246271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1726423643 - 2⁶ = 1726423579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1726423597 and 1726423606.

It is not an unprimeable number, because it can be changed into a prime (1726423043) 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 7 ways as a sum of consecutive naturals, for example, 2326346 + ... + 2327087.

It is an arithmetic number, because the mean of its divisors is an integer number (251285436).

Almost surely, 2^1726423643 is an apocalyptic number.

1726423643 is a deficient number, since it is larger than the sum of its proper divisors (283859845).

1726423643 is an equidigital number, since it uses as much as digits as its factorization.

1726423643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4653493.

The product of its digits is 145152, while the sum is 38.

The square root of 1726423643 is about 41550.2544276205. The cubic root of 1726423643 is about 1199.6349915316.

The spelling of 1726423643 in words is "one billion, seven hundred twenty-six million, four hundred twenty-three thousand, six hundred forty-three".