11028993 has 8 divisors (see below), whose sum is σ = 14753856. Its totient is φ = 7328400.

The previous prime is 11028989. The next prime is 11029001. The reversal of 11028993 is 39982011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11028993 - 2² = 11028989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11028593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4978 + ... + 6843.

It is an arithmetic number, because the mean of its divisors is an integer number (1844232).

Almost surely, 2^11028993 is an apocalyptic number.

It is an amenable number.

11028993 is a deficient number, since it is larger than the sum of its proper divisors (3724863).

11028993 is a wasteful number, since it uses less digits than its factorization.

11028993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12135.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 11028993 is about 3320.9927732532. The cubic root of 11028993 is about 222.5932311392.

It can be divided in two parts, 11028 and 993, that added together give a palindrome (12021).

The spelling of 11028993 in words is "eleven million, twenty-eight thousand, nine hundred ninety-three".