11989411 has 8 divisors (see below), whose sum is σ = 13729280. Its totient is φ = 10256328.

The previous prime is 11989409. The next prime is 11989421. The reversal of 11989411 is 11498911.

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 11989411 - 2¹ = 11989409 is a prime.

It is a super-2 number, since 2×11989411² = 287491952253842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11989421) 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, 2950 + ... + 5716.

It is an arithmetic number, because the mean of its divisors is an integer number (1716160).

Almost surely, 2^11989411 is an apocalyptic number.

11989411 is a deficient number, since it is larger than the sum of its proper divisors (1739869).

11989411 is an equidigital number, since it uses as much as digits as its factorization.

11989411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3393.

The product of its digits is 2592, while the sum is 34.

The square root of 11989411 is about 3462.5728873195. The cubic root of 11989411 is about 228.8754876983.

It can be divided in two parts, 1198 and 9411, that added together give a square (10609 = 103²).

The spelling of 11989411 in words is "eleven million, nine hundred eighty-nine thousand, four hundred eleven".