11012728 has 8 divisors (see below), whose sum is σ = 20648880. Its totient is φ = 5506360.

The previous prime is 11012713. The next prime is 11012731. The reversal of 11012728 is 82721011.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 11012699 and 11012708.

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, 688288 + ... + 688303.

It is an arithmetic number, because the mean of its divisors is an integer number (2581110).

Almost surely, 2^11012728 is an apocalyptic number.

It is an amenable number.

11012728 is a deficient number, since it is larger than the sum of its proper divisors (9636152).

11012728 is a wasteful number, since it uses less digits than its factorization.

11012728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376597 (or 1376593 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 11012728 is about 3318.5430538114. The cubic root of 11012728 is about 222.4837542319.

Adding to 11012728 its reverse (82721011), we get a palindrome (93733739).

The spelling of 11012728 in words is "eleven million, twelve thousand, seven hundred twenty-eight".