11358891 has 6 divisors (see below), whose sum is σ = 16407300. Its totient is φ = 7572588.

The previous prime is 11358887. The next prime is 11358911. The reversal of 11358891 is 19885311.

It is not a de Polignac number, because 11358891 - 2² = 11358887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11358881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 631041 + ... + 631058.

It is an arithmetic number, because the mean of its divisors is an integer number (2734550).

Almost surely, 2^11358891 is an apocalyptic number.

11358891 is a deficient number, since it is larger than the sum of its proper divisors (5048409).

11358891 is a wasteful number, since it uses less digits than its factorization.

11358891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262105 (or 1262102 counting only the distinct ones).

The product of its digits is 8640, while the sum is 36.

The square root of 11358891 is about 3370.2953876478. The cubic root of 11358891 is about 224.7908575095.

The spelling of 11358891 in words is "eleven million, three hundred fifty-eight thousand, eight hundred ninety-one".