1423717 has 2 divisors, whose sum is σ = 1423718. Its totient is φ = 1423716.

The previous prime is 1423711. The next prime is 1423753. The reversal of 1423717 is 7173241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1147041 + 276676 = 1071^2 + 526^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423717 - 2⁷ = 1423589 is a prime.

1423717 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1423691 and 1423700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711858 + 711859.

It is an arithmetic number, because the mean of its divisors is an integer number (711859).

2^1423717 is an apocalyptic number.

It is an amenable number.

1423717 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423717 is an equidigital number, since it uses as much as digits as its factorization.

1423717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 25.

The square root of 1423717 is about 1193.1961280527. The cubic root of 1423717 is about 112.4970731749.

Adding to 1423717 its reverse (7173241), we get a palindrome (8596958).

The spelling of 1423717 in words is "one million, four hundred twenty-three thousand, seven hundred seventeen".