1304633 has 4 divisors (see below), whose sum is σ = 1423248. Its totient is φ = 1186020.

The previous prime is 1304627. The next prime is 1304659. The reversal of 1304633 is 3364031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3364031 = 11 ⋅305821.

It is not a de Polignac number, because 1304633 - 2¹⁴ = 1288249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1304603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59291 + ... + 59312.

It is an arithmetic number, because the mean of its divisors is an integer number (355812).

2^1304633 is an apocalyptic number.

It is an amenable number.

1304633 is a deficient number, since it is larger than the sum of its proper divisors (118615).

1304633 is a wasteful number, since it uses less digits than its factorization.

1304633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118614.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1304633 is about 1142.2053230484. The cubic root of 1304633 is about 109.2687864682.

Adding to 1304633 its reverse (3364031), we get a palindrome (4668664).

The spelling of 1304633 in words is "one million, three hundred four thousand, six hundred thirty-three".