11587843 has 2 divisors, whose sum is σ = 11587844. Its totient is φ = 11587842.

The previous prime is 11587841. The next prime is 11587903. The reversal of 11587843 is 34878511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11587843 - 2¹ = 11587841 is a prime.

Together with 11587841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11587841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5793921 + 5793922.

It is an arithmetic number, because the mean of its divisors is an integer number (5793922).

Almost surely, 2^11587843 is an apocalyptic number.

11587843 is a deficient number, since it is larger than the sum of its proper divisors (1).

11587843 is an equidigital number, since it uses as much as digits as its factorization.

11587843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 37.

The square root of 11587843 is about 3404.0920962865. The cubic root of 11587843 is about 226.2911315796.

It can be divided in two parts, 115878 and 43, that added together give a triangular number (115921 = T₄₈₁).

The spelling of 11587843 in words is "eleven million, five hundred eighty-seven thousand, eight hundred forty-three".