444523 has 2 divisors, whose sum is σ = 444524. Its totient is φ = 444522.

The previous prime is 444517. The next prime is 444527. The reversal of 444523 is 325444.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 444494 and 444503.

It is not a weakly prime, because it can be changed into another prime (444527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222261 + 222262.

It is an arithmetic number, because the mean of its divisors is an integer number (222262).

444523 is a Friedman number, since it can be written as 42^4/(4+3)-5, using all its digits and the basic arithmetic operations.

2⁴⁴⁴⁵²³ is an apocalyptic number.

444523 is a deficient number, since it is larger than the sum of its proper divisors (1).

444523 is an equidigital number, since it uses as much as digits as its factorization.

444523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 22.

The square root of 444523 is about 666.7255807302. The cubic root of 444523 is about 76.3187787552.

Adding to 444523 its reverse (325444), we get a palindrome (769967).

The spelling of 444523 in words is "four hundred forty-four thousand, five hundred twenty-three".