1111864 has 16 divisors (see below), whose sum is σ = 2245320. Its totient is φ = 513120.

The previous prime is 1111853. The next prime is 1111867. The reversal of 1111864 is 4681111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5242 + ... + 5449.

2^1111864 is an apocalyptic number.

It is an amenable number.

1111864 is an abundant number, since it is smaller than the sum of its proper divisors (1133456).

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

1111864 is a wasteful number, since it uses less digits than its factorization.

1111864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10710 (or 10706 counting only the distinct ones).

The product of its digits is 192, while the sum is 22.

The square root of 1111864 is about 1054.4496194698. The cubic root of 1111864 is about 103.5978055915.

Adding to 1111864 its reverse (4681111), we get a palindrome (5792975).

The spelling of 1111864 in words is "one million, one hundred eleven thousand, eight hundred sixty-four".