1723423 has 8 divisors (see below), whose sum is σ = 1906688. Its totient is φ = 1547424.

The previous prime is 1723417. The next prime is 1723451. The reversal of 1723423 is 3243271.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1723423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1723394 and 1723403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1723453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1311 + ... + 2272.

It is an arithmetic number, because the mean of its divisors is an integer number (238336).

2^1723423 is an apocalyptic number.

1723423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1723423 is a deficient number, since it is larger than the sum of its proper divisors (183265).

1723423 is a wasteful number, since it uses less digits than its factorization.

1723423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3633.

The product of its digits is 1008, while the sum is 22.

The square root of 1723423 is about 1312.7920627426. The cubic root of 1723423 is about 119.8939572446.

Adding to 1723423 its reverse (3243271), we get a palindrome (4966694).

The spelling of 1723423 in words is "one million, seven hundred twenty-three thousand, four hundred twenty-three".