10891243 has 8 divisors (see below), whose sum is σ = 11919600. Its totient is φ = 9869280.

The previous prime is 10891241. The next prime is 10891253. The reversal of 10891243 is 34219801.

It is a happy number.

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 10891243 - 2¹ = 10891241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10891241) 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, 2421 + ... + 5257.

It is an arithmetic number, because the mean of its divisors is an integer number (1489950).

Almost surely, 2^10891243 is an apocalyptic number.

10891243 is a deficient number, since it is larger than the sum of its proper divisors (1028357).

10891243 is a wasteful number, since it uses less digits than its factorization.

10891243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 10891243 is about 3300.1883279595. The cubic root of 10891243 is about 221.6626304376.

It can be divided in two parts, 1089 and 1243, that added together give a palindrome (2332).

The spelling of 10891243 in words is "ten million, eight hundred ninety-one thousand, two hundred forty-three".