11289047 has 16 divisors (see below), whose sum is σ = 14152704. Its totient is φ = 8748000.

The previous prime is 11289043. The next prime is 11289049. The reversal of 11289047 is 74098211.

11289047 is digitally balanced in base 2, 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 11289047 - 2² = 11289043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11289043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20597 + ... + 21137.

It is an arithmetic number, because the mean of its divisors is an integer number (884544).

Almost surely, 2^11289047 is an apocalyptic number.

11289047 is a deficient number, since it is larger than the sum of its proper divisors (2863657).

11289047 is a wasteful number, since it uses less digits than its factorization.

11289047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 11289047 is about 3359.9177073256. The cubic root of 11289047 is about 224.3291756265.

The spelling of 11289047 in words is "eleven million, two hundred eighty-nine thousand, forty-seven".