1122784 has 24 divisors (see below), whose sum is σ = 2381400. Its totient is φ = 518016.

The previous prime is 1122761. The next prime is 1122811. The reversal of 1122784 is 4872211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 934 + ... + 1765.

It is an arithmetic number, because the mean of its divisors is an integer number (99225).

2^1122784 is an apocalyptic number.

It is an amenable number.

1122784 is an abundant number, since it is smaller than the sum of its proper divisors (1258616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122784 is a wasteful number, since it uses less digits than its factorization.

1122784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722 (or 2714 counting only the distinct ones).

The product of its digits is 896, while the sum is 25.

The square root of 1122784 is about 1059.6150244310. The cubic root of 1122784 is about 103.9358578843.

Adding to 1122784 its reverse (4872211), we get a palindrome (5994995).

It can be divided in two parts, 11227 and 84, that added together give a palindrome (11311).

The spelling of 1122784 in words is "one million, one hundred twenty-two thousand, seven hundred eighty-four".