1113664 has 14 divisors (see below), whose sum is σ = 2210054. Its totient is φ = 556800.

The previous prime is 1113643. The next prime is 1113667. The reversal of 1113664 is 4663111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 984064 + 129600 = 992^2 + 360^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8637 + ... + 8764.

It is an arithmetic number, because the mean of its divisors is an integer number (157861).

2^1113664 is an apocalyptic number.

It is an amenable number.

1113664 is a deficient number, since it is larger than the sum of its proper divisors (1096390).

1113664 is an equidigital number, since it uses as much as digits as its factorization.

1113664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17413 (or 17403 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 1113664 is about 1055.3028001479. The cubic root of 1113664 is about 103.6536803842.

Adding to 1113664 its reverse (4663111), we get a palindrome (5776775).

The spelling of 1113664 in words is "one million, one hundred thirteen thousand, six hundred sixty-four".