1304823 has 8 divisors (see below), whose sum is σ = 1873648. Its totient is φ = 802944.

The previous prime is 1304803. The next prime is 1304833. The reversal of 1304823 is 3284031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1304823 - 2¹² = 1300727 is a prime.

It is a super-2 number, since 2×1304823² = 3405126122658, which contains 22 as substring.

It is a Duffinian number.

1304823 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1304823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16690 + ... + 16767.

It is an arithmetic number, because the mean of its divisors is an integer number (234206).

2^1304823 is an apocalyptic number.

1304823 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1304823 is a deficient number, since it is larger than the sum of its proper divisors (568825).

1304823 is a wasteful number, since it uses less digits than its factorization.

1304823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33473.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1304823 is about 1142.2884924571. The cubic root of 1304823 is about 109.2740906576.

Adding to 1304823 its reverse (3284031), we get a palindrome (4588854).

The spelling of 1304823 in words is "one million, three hundred four thousand, eight hundred twenty-three".