1111888 has 10 divisors (see below), whose sum is σ = 2154314. Its totient is φ = 555936.

The previous prime is 1111867. The next prime is 1111897. The reversal of 1111888 is 8881111.

It can be written as a sum of positive squares in only one way, i.e., 1106704 + 5184 = 1052^2 + 72^2 .

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34731 + ... + 34762.

2^1111888 is an apocalyptic number.

It is an amenable number.

1111888 is a deficient number, since it is larger than the sum of its proper divisors (1042426).

1111888 is an equidigital number, since it uses as much as digits as its factorization.

1111888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69501 (or 69495 counting only the distinct ones).

The product of its digits is 512, while the sum is 28.

The square root of 1111888 is about 1054.4609997530. The cubic root of 1111888 is about 103.5985509852.

Adding to 1111888 its reverse (8881111), we get a palindrome (9992999).

The spelling of 1111888 in words is "one million, one hundred eleven thousand, eight hundred eighty-eight".