11028857 has 4 divisors (see below), whose sum is σ = 12604416. Its totient is φ = 9453300.

The previous prime is 11028851. The next prime is 11028863. The reversal of 11028857 is 75882011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (11028851) and next prime (11028863).

It is a cyclic number.

It is not a de Polignac number, because 11028857 - 2⁸ = 11028601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11028851) 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, 787769 + ... + 787782.

It is an arithmetic number, because the mean of its divisors is an integer number (3151104).

Almost surely, 2^11028857 is an apocalyptic number.

It is an amenable number.

11028857 is a deficient number, since it is larger than the sum of its proper divisors (1575559).

11028857 is an equidigital number, since it uses as much as digits as its factorization.

11028857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575558.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 11028857 is about 3320.9722973852. The cubic root of 11028857 is about 222.5923161930.

The spelling of 11028857 in words is "eleven million, twenty-eight thousand, eight hundred fifty-seven".