1121684 has 12 divisors (see below), whose sum is σ = 2066400. Its totient is φ = 531288.

The previous prime is 1121671. The next prime is 1121689. The reversal of 1121684 is 4861211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7304 + ... + 7455.

It is an arithmetic number, because the mean of its divisors is an integer number (172200).

2^1121684 is an apocalyptic number.

It is an amenable number.

1121684 is a deficient number, since it is larger than the sum of its proper divisors (944716).

1121684 is a wasteful number, since it uses less digits than its factorization.

1121684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14782 (or 14780 counting only the distinct ones).

The product of its digits is 384, while the sum is 23.

The square root of 1121684 is about 1059.0958408001. The cubic root of 1121684 is about 103.9019045444.

Adding to 1121684 its reverse (4861211), we get a palindrome (5982895).

The spelling of 1121684 in words is "one million, one hundred twenty-one thousand, six hundred eighty-four".