394523 has 2 divisors, whose sum is σ = 394524. Its totient is φ = 394522.

The previous prime is 394507. The next prime is 394529. The reversal of 394523 is 325493.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 394523 - 2⁴ = 394507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 394492 and 394501.

It is not a weakly prime, because it can be changed into another prime (394529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197261 + 197262.

It is an arithmetic number, because the mean of its divisors is an integer number (197262).

2³⁹⁴⁵²³ is an apocalyptic number.

394523 is a deficient number, since it is larger than the sum of its proper divisors (1).

394523 is an equidigital number, since it uses as much as digits as its factorization.

394523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 26.

The square root of 394523 is about 628.1106590403. The cubic root of 394523 is about 73.3427926274.

The spelling of 394523 in words is "three hundred ninety-four thousand, five hundred twenty-three".