11776389 has 16 divisors (see below), whose sum is σ = 16336320. Its totient is φ = 7539840.

The previous prime is 11776381. The next prime is 11776411. The reversal of 11776389 is 98367711.

11776389 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11776389 - 2³ = 11776381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11776389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11776381) 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, 7527 + ... + 8955.

It is an arithmetic number, because the mean of its divisors is an integer number (1021020).

Almost surely, 2^11776389 is an apocalyptic number.

It is an amenable number.

11776389 is a deficient number, since it is larger than the sum of its proper divisors (4559931).

11776389 is a wasteful number, since it uses less digits than its factorization.

11776389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540.

The product of its digits is 63504, while the sum is 42.

The square root of 11776389 is about 3431.6743726642. The cubic root of 11776389 is about 227.5118634879.

The spelling of 11776389 in words is "eleven million, seven hundred seventy-six thousand, three hundred eighty-nine".