1723427 has 4 divisors (see below), whose sum is σ = 1726296. Its totient is φ = 1720560.

The previous prime is 1723417. The next prime is 1723451. The reversal of 1723427 is 7243271.

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

It is a cyclic number.

It is not a de Polignac number, because 1723427 - 2¹⁸ = 1461283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1723396 and 1723405.

It is not an unprimeable number, because it can be changed into a prime (1723417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149 + ... + 1862.

It is an arithmetic number, because the mean of its divisors is an integer number (431574).

2^1723427 is an apocalyptic number.

1723427 is a deficient number, since it is larger than the sum of its proper divisors (2869).

1723427 is an equidigital number, since it uses as much as digits as its factorization.

1723427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868.

The product of its digits is 2352, while the sum is 26.

The square root of 1723427 is about 1312.7935862122. The cubic root of 1723427 is about 119.8940500010.

Adding to 1723427 its reverse (7243271), we get a palindrome (8966698).

The spelling of 1723427 in words is "one million, seven hundred twenty-three thousand, four hundred twenty-seven".