11289895 has 16 divisors (see below), whose sum is σ = 14883840. Its totient is φ = 8182944.

The previous prime is 11289877. The next prime is 11289899. The reversal of 11289895 is 59898211.

11289895 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11289895 - 2¹³ = 11281703 is a prime.

It is a super-2 number, since 2×11289895² = 254923458222050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11289899) 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 15 ways as a sum of consecutive naturals, for example, 399 + ... + 4768.

It is an arithmetic number, because the mean of its divisors is an integer number (930240).

Almost surely, 2^11289895 is an apocalyptic number.

11289895 is a deficient number, since it is larger than the sum of its proper divisors (3593945).

11289895 is a wasteful number, since it uses less digits than its factorization.

11289895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5214.

The product of its digits is 51840, while the sum is 43.

The square root of 11289895 is about 3360.0438985228. The cubic root of 11289895 is about 224.3347924684.

The spelling of 11289895 in words is "eleven million, two hundred eighty-nine thousand, eight hundred ninety-five".