1228633 has 4 divisors (see below), whose sum is σ = 1404160. Its totient is φ = 1053108.

The previous prime is 1228631. The next prime is 1228651. The reversal of 1228633 is 3368221.

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: 3368221 = 37 ⋅91033.

It is not a de Polignac number, because 1228633 - 2¹ = 1228631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1228598 and 1228607.

It is not an unprimeable number, because it can be changed into a prime (1228631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87753 + ... + 87766.

It is an arithmetic number, because the mean of its divisors is an integer number (351040).

2^1228633 is an apocalyptic number.

It is an amenable number.

1228633 is a deficient number, since it is larger than the sum of its proper divisors (175527).

1228633 is an equidigital number, since it uses as much as digits as its factorization.

1228633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175526.

The product of its digits is 1728, while the sum is 25.

The square root of 1228633 is about 1108.4371881167. The cubic root of 1228633 is about 107.1044195666.

The spelling of 1228633 in words is "one million, two hundred twenty-eight thousand, six hundred thirty-three".