804523 has 2 divisors, whose sum is σ = 804524. Its totient is φ = 804522.

The previous prime is 804521. The next prime is 804541. The reversal of 804523 is 325408.

804523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 804523 - 2¹ = 804521 is a prime.

Together with 804521, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 804494 and 804503.

It is not a weakly prime, because it can be changed into another prime (804521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402261 + 402262.

It is an arithmetic number, because the mean of its divisors is an integer number (402262).

2⁸⁰⁴⁵²³ is an apocalyptic number.

804523 is a deficient number, since it is larger than the sum of its proper divisors (1).

804523 is an equidigital number, since it uses as much as digits as its factorization.

804523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 804523 is about 896.9520611493. The cubic root of 804523 is about 93.0063972167.

The spelling of 804523 in words is "eight hundred four thousand, five hundred twenty-three".