11889247 has 4 divisors (see below), whose sum is σ = 12210616. Its totient is φ = 11567880.

The previous prime is 11889233. The next prime is 11889257. The reversal of 11889247 is 74298811.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11889247 - 2¹⁵ = 11856479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11889257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160629 + ... + 160702.

It is an arithmetic number, because the mean of its divisors is an integer number (3052654).

Almost surely, 2^11889247 is an apocalyptic number.

11889247 is a deficient number, since it is larger than the sum of its proper divisors (321369).

11889247 is an equidigital number, since it uses as much as digits as its factorization.

11889247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321368.

The product of its digits is 32256, while the sum is 40.

The square root of 11889247 is about 3448.0787404002. The cubic root of 11889247 is about 228.2363341463.

The spelling of 11889247 in words is "eleven million, eight hundred eighty-nine thousand, two hundred forty-seven".