11989574 has 8 divisors (see below), whose sum is σ = 18042048. Its totient is φ = 5975560.

The previous prime is 11989553. The next prime is 11989597. The reversal of 11989574 is 47598911.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8822 + ... + 10089.

It is an arithmetic number, because the mean of its divisors is an integer number (2255256).

Almost surely, 2^11989574 is an apocalyptic number.

11989574 is a deficient number, since it is larger than the sum of its proper divisors (6052474).

11989574 is a wasteful number, since it uses less digits than its factorization.

11989574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19230.

The product of its digits is 90720, while the sum is 44.

The square root of 11989574 is about 3462.5964246501. The cubic root of 11989574 is about 228.8765249062.

The spelling of 11989574 in words is "eleven million, nine hundred eighty-nine thousand, five hundred seventy-four".