11884389 has 16 divisors (see below), whose sum is σ = 17409600. Its totient is φ = 7151360.

The previous prime is 11884387. The next prime is 11884391. The reversal of 11884389 is 98348811.

11884389 = T₁₂₀ + T₁₂₁ + ... + T₄₁₇.

11884389 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11884387) and next prime (11884391).

It is a cyclic number.

It is not a de Polignac number, because 11884389 - 2¹ = 11884387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11884389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11884387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3709 + ... + 6125.

It is an arithmetic number, because the mean of its divisors is an integer number (1088100).

Almost surely, 2^11884389 is an apocalyptic number.

It is an amenable number.

11884389 is a deficient number, since it is larger than the sum of its proper divisors (5525211).

11884389 is a wasteful number, since it uses less digits than its factorization.

11884389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580.

The product of its digits is 55296, while the sum is 42.

The square root of 11884389 is about 3447.3742181550. The cubic root of 11884389 is about 228.2052437792.

It can be divided in two parts, 11 and 884389, that multiplied together give a palindrome (9728279).

The spelling of 11884389 in words is "eleven million, eight hundred eighty-four thousand, three hundred eighty-nine".