904823 has 2 divisors, whose sum is σ = 904824. Its totient is φ = 904822.

The previous prime is 904811. The next prime is 904847. The reversal of 904823 is 328409.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 904823 - 2⁶ = 904759 is a prime.

It is a super-3 number, since 3×904823³ = 2222348423333069301, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 904792 and 904801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (904873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452411 + 452412.

It is an arithmetic number, because the mean of its divisors is an integer number (452412).

2⁹⁰⁴⁸²³ is an apocalyptic number.

904823 is a deficient number, since it is larger than the sum of its proper divisors (1).

904823 is an equidigital number, since it uses as much as digits as its factorization.

904823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 904823 is about 951.2218458383. The cubic root of 904823 is about 96.7210963121.

It can be divided in two parts, 90 and 4823, that added together give a cube (4913 = 17³).

The spelling of 904823 in words is "nine hundred four thousand, eight hundred twenty-three".