11288985 has 16 divisors (see below), whose sum is σ = 18187200. Its totient is φ = 5979200.

The previous prime is 11288923. The next prime is 11288999. The reversal of 11288985 is 58988211.

11288985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11288985 - 2⁷ = 11288857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291 + ... + 4760.

It is an arithmetic number, because the mean of its divisors is an integer number (1136700).

Almost surely, 2^11288985 is an apocalyptic number.

11288985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11288985 is a deficient number, since it is larger than the sum of its proper divisors (6898215).

11288985 is a wasteful number, since it uses less digits than its factorization.

11288985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208.

The product of its digits is 46080, while the sum is 42.

The square root of 11288985 is about 3359.9084808965. The cubic root of 11288985 is about 224.3287649501.

The spelling of 11288985 in words is "eleven million, two hundred eighty-eight thousand, nine hundred eighty-five".