11003985 has 32 divisors (see below), whose sum is σ = 20100480. Its totient is φ = 5707584.

The previous prime is 11003957. The next prime is 11004017. The reversal of 11003985 is 58930011.

11003985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11003985 - 2⁵ = 11003953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3894 + ... + 6096.

It is an arithmetic number, because the mean of its divisors is an integer number (628140).

Almost surely, 2^11003985 is an apocalyptic number.

11003985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11003985 is a deficient number, since it is larger than the sum of its proper divisors (9096495).

11003985 is a wasteful number, since it uses less digits than its factorization.

11003985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254 (or 2248 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 11003985 is about 3317.2254973095. The cubic root of 11003985 is about 222.4248620589.

Adding to 11003985 its reverse (58930011), we get a palindrome (69933996).

The spelling of 11003985 in words is "eleven million, three thousand, nine hundred eighty-five".