427723 has 2 divisors, whose sum is σ = 427724. Its totient is φ = 427722.

The previous prime is 427717. The next prime is 427727. The reversal of 427723 is 327724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427723 - 2¹⁷ = 296651 is a prime.

It is a d-powerful number, because it can be written as 4⁴ + 2¹¹ + 7⁶ + 7⁶ + 2¹⁷ + 3¹⁰ .

427723 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (427727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213861 + 213862.

It is an arithmetic number, because the mean of its divisors is an integer number (213862).

427723 is a Friedman number, since it can be written as 7+327^2*4, using all its digits and the basic arithmetic operations.

2⁴²⁷⁷²³ is an apocalyptic number.

427723 is a deficient number, since it is larger than the sum of its proper divisors (1).

427723 is an equidigital number, since it uses as much as digits as its factorization.

427723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 25.

The square root of 427723 is about 654.0053516601. The cubic root of 427723 is about 75.3449590919.

Subtracting from 427723 its reverse (327724), we obtain a palindrome (99999).

The spelling of 427723 in words is "four hundred twenty-seven thousand, seven hundred twenty-three", and thus it is an iban number.