11891343 has 8 divisors (see below), whose sum is σ = 15902208. Its totient is φ = 7904024.

The previous prime is 11891323. The next prime is 11891357. The reversal of 11891343 is 34319811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11891343 - 2¹⁷ = 11760271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11891343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11891303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4671 + ... + 6752.

It is an arithmetic number, because the mean of its divisors is an integer number (1987776).

Almost surely, 2^11891343 is an apocalyptic number.

11891343 is a deficient number, since it is larger than the sum of its proper divisors (4010865).

11891343 is a wasteful number, since it uses less digits than its factorization.

11891343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11773.

The product of its digits is 2592, while the sum is 30.

The square root of 11891343 is about 3448.3826643805. The cubic root of 11891343 is about 228.2497455717.

The spelling of 11891343 in words is "eleven million, eight hundred ninety-one thousand, three hundred forty-three".