11111628 has 24 divisors (see below), whose sum is σ = 28284480. Its totient is φ = 3367120.

The previous prime is 11111623. The next prime is 11111651. The reversal of 11111628 is 82611111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11111621) 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 7 ways as a sum of consecutive naturals, for example, 41958 + ... + 42221.

It is an arithmetic number, because the mean of its divisors is an integer number (1178520).

Almost surely, 2^11111628 is an apocalyptic number.

It is an amenable number.

11111628 is an abundant number, since it is smaller than the sum of its proper divisors (17172852).

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

11111628 is a wasteful number, since it uses less digits than its factorization.

11111628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84197 (or 84195 counting only the distinct ones).

The product of its digits is 96, while the sum is 21.

The square root of 11111628 is about 3333.4108657650. The cubic root of 11111628 is about 223.1477768649.

Adding to 11111628 its reverse (82611111), we get a palindrome (93722739).

The spelling of 11111628 in words is "eleven million, one hundred eleven thousand, six hundred twenty-eight".