11028387 has 4 divisors (see below), whose sum is σ = 14704520. Its totient is φ = 7352256.

The previous prime is 11028377. The next prime is 11028389. The reversal of 11028387 is 78382011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11028387 - 2⁸ = 11028131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11028389) 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, 1838062 + ... + 1838067.

It is an arithmetic number, because the mean of its divisors is an integer number (3676130).

Almost surely, 2^11028387 is an apocalyptic number.

11028387 is a deficient number, since it is larger than the sum of its proper divisors (3676133).

11028387 is an equidigital number, since it uses as much as digits as its factorization.

11028387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676132.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 11028387 is about 3320.9015342223. The cubic root of 11028387 is about 222.5891541889.

The spelling of 11028387 in words is "eleven million, twenty-eight thousand, three hundred eighty-seven".