11228587 has 4 divisors (see below), whose sum is σ = 11272536. Its totient is φ = 11184640.

The previous prime is 11228561. The next prime is 11228593. The reversal of 11228587 is 78582211.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11228587 - 2¹¹ = 11226539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11238587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21589 + ... + 22102.

It is an arithmetic number, because the mean of its divisors is an integer number (2818134).

Almost surely, 2^11228587 is an apocalyptic number.

11228587 is a deficient number, since it is larger than the sum of its proper divisors (43949).

11228587 is an equidigital number, since it uses as much as digits as its factorization.

11228587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43948.

The product of its digits is 8960, while the sum is 34.

The square root of 11228587 is about 3350.9083843042. The cubic root of 11228587 is about 223.9279835987.

The spelling of 11228587 in words is "eleven million, two hundred twenty-eight thousand, five hundred eighty-seven".