11289487 has 8 divisors (see below), whose sum is σ = 12713472. Its totient is φ = 9931800.

The previous prime is 11289451. The next prime is 11289511. The reversal of 11289487 is 78498211.

It is a happy number.

11289487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11289487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11289427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16213 + ... + 16894.

It is an arithmetic number, because the mean of its divisors is an integer number (1589184).

Almost surely, 2^11289487 is an apocalyptic number.

11289487 is a deficient number, since it is larger than the sum of its proper divisors (1423985).

11289487 is a wasteful number, since it uses less digits than its factorization.

11289487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33149.

The product of its digits is 32256, while the sum is 40.

The square root of 11289487 is about 3359.9831844817. The cubic root of 11289487 is about 224.3320900607.

The spelling of 11289487 in words is "eleven million, two hundred eighty-nine thousand, four hundred eighty-seven".