11411989 has 4 divisors (see below), whose sum is σ = 12012640. Its totient is φ = 10811340.

The previous prime is 11411987. The next prime is 11412001. The reversal of 11411989 is 98911411.

11411989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11411989 - 2¹ = 11411987 is a prime.

It is a super-2 number, since 2×11411989² = 260466985872242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11411987) 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, 300297 + ... + 300334.

It is an arithmetic number, because the mean of its divisors is an integer number (3003160).

Almost surely, 2^11411989 is an apocalyptic number.

11411989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11411989 is a deficient number, since it is larger than the sum of its proper divisors (600651).

11411989 is an equidigital number, since it uses as much as digits as its factorization.

11411989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600650.

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

The square root of 11411989 is about 3378.1635543591. The cubic root of 11411989 is about 225.1405804595.

The spelling of 11411989 in words is "eleven million, four hundred eleven thousand, nine hundred eighty-nine".