11304891 has 24 divisors (see below), whose sum is σ = 18354336. Its totient is φ = 6652800.

The previous prime is 11304883. The next prime is 11304893. The reversal of 11304891 is 19840311.

It is not a de Polignac number, because 11304891 - 2³ = 11304883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11304893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 591 + ... + 4791.

It is an arithmetic number, because the mean of its divisors is an integer number (764764).

Almost surely, 2^11304891 is an apocalyptic number.

11304891 is a deficient number, since it is larger than the sum of its proper divisors (7049445).

11304891 is a wasteful number, since it uses less digits than its factorization.

11304891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4243 (or 4240 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 11304891 is about 3362.2746764653. The cubic root of 11304891 is about 224.4340740578.

The spelling of 11304891 in words is "eleven million, three hundred four thousand, eight hundred ninety-one".