1224627 has 4 divisors (see below), whose sum is σ = 1632840. Its totient is φ = 816416.

The previous prime is 1224599. The next prime is 1224637. The reversal of 1224627 is 7264221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7264221 = 3 ⋅2421407.

It is a cyclic number.

It is not a de Polignac number, because 1224627 - 2¹⁰ = 1223603 is a prime.

It is a super-2 number, since 2×1224627² = 2999422578258, which contains 22 as substring.

It is a D-number.

1224627 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1224597 and 1224606.

It is not an unprimeable number, because it can be changed into a prime (1224637) 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, 204102 + ... + 204107.

It is an arithmetic number, because the mean of its divisors is an integer number (408210).

2^1224627 is an apocalyptic number.

1224627 is a deficient number, since it is larger than the sum of its proper divisors (408213).

1224627 is an equidigital number, since it uses as much as digits as its factorization.

1224627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408212.

The product of its digits is 1344, while the sum is 24.

The square root of 1224627 is about 1106.6286640061. The cubic root of 1224627 is about 106.9878869451.

Adding to 1224627 its reverse (7264221), we get a palindrome (8488848).

The spelling of 1224627 in words is "one million, two hundred twenty-four thousand, six hundred twenty-seven".