11087811 has 48 divisors (see below), whose sum is σ = 19718400. Its totient is φ = 5863104.

The previous prime is 11087777. The next prime is 11087819. The reversal of 11087811 is 11878011.

11087811 is nontrivially palindromic in base 12.

It is not a de Polignac number, because 11087811 - 2¹³ = 11079619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11087819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70545 + ... + 70701.

It is an arithmetic number, because the mean of its divisors is an integer number (410800).

Almost surely, 2^11087811 is an apocalyptic number.

11087811 is a deficient number, since it is larger than the sum of its proper divisors (8630589).

11087811 is a wasteful number, since it uses less digits than its factorization.

11087811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 27.

The square root of 11087811 is about 3329.8364824718. The cubic root of 11087811 is about 222.9882289161.

It can be divided in two parts, 110878 and 11, that added together give a square (110889 = 333²).

The spelling of 11087811 in words is "eleven million, eighty-seven thousand, eight hundred eleven".