11388867 has 16 divisors (see below), whose sum is σ = 17536512. Its totient is φ = 6439680.

The previous prime is 11388863. The next prime is 11388869. The reversal of 11388867 is 76888311.

It is not a de Polignac number, because 11388867 - 2² = 11388863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11388863) 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, 759 + ... + 4832.

It is an arithmetic number, because the mean of its divisors is an integer number (1096032).

Almost surely, 2^11388867 is an apocalyptic number.

11388867 is a deficient number, since it is larger than the sum of its proper divisors (6147645).

11388867 is an equidigital number, since it uses as much as digits as its factorization.

11388867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5698.

The product of its digits is 64512, while the sum is 42.

The square root of 11388867 is about 3374.7395455057. The cubic root of 11388867 is about 224.9884240958.

The spelling of 11388867 in words is "eleven million, three hundred eighty-eight thousand, eight hundred sixty-seven".