11780916 has 24 divisors (see below), whose sum is σ = 31416000. Its totient is φ = 3365952.

The previous prime is 11780903. The next prime is 11780921. The reversal of 11780916 is 61908711.

11780916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70041 + ... + 70208.

It is an arithmetic number, because the mean of its divisors is an integer number (1309000).

Almost surely, 2^11780916 is an apocalyptic number.

It is an amenable number.

11780916 is an abundant number, since it is smaller than the sum of its proper divisors (19635084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11780916 is a wasteful number, since it uses less digits than its factorization.

11780916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140263 (or 140261 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 33.

The square root of 11780916 is about 3432.3338998413. Note that the first 3 decimals coincide. The cubic root of 11780916 is about 227.5410126116.

The spelling of 11780916 in words is "eleven million, seven hundred eighty thousand, nine hundred sixteen".