1204823 has 2 divisors, whose sum is σ = 1204824. Its totient is φ = 1204822.

The previous prime is 1204813. The next prime is 1204859. The reversal of 1204823 is 3284021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1204823 - 2¹⁰ = 1203799 is a prime.

It is a super-2 number, since 2×1204823² = 2903196922658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1204795 and 1204804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1204813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602411 + 602412.

It is an arithmetic number, because the mean of its divisors is an integer number (602412).

2^1204823 is an apocalyptic number.

1204823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204823 is an equidigital number, since it uses as much as digits as its factorization.

1204823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1204823 is about 1097.6442957534. The cubic root of 1204823 is about 106.4080333411.

Adding to 1204823 its reverse (3284021), we get a palindrome (4488844).

The spelling of 1204823 in words is "one million, two hundred four thousand, eight hundred twenty-three".