11787261 has 8 divisors (see below), whose sum is σ = 15732960. Its totient is φ = 7849872.

The previous prime is 11787257. The next prime is 11787287. The reversal of 11787261 is 16278711.

11787261 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11787261 - 2² = 11787257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11787221) 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, 3031 + ... + 5723.

It is an arithmetic number, because the mean of its divisors is an integer number (1966620).

Almost surely, 2^11787261 is an apocalyptic number.

It is an amenable number.

11787261 is a deficient number, since it is larger than the sum of its proper divisors (3945699).

11787261 is a wasteful number, since it uses less digits than its factorization.

11787261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155.

The product of its digits is 4704, while the sum is 33.

The square root of 11787261 is about 3433.2580736088. The cubic root of 11787261 is about 227.5818551802.

It can be divided in two parts, 117 and 87261, that added together give a palindrome (87378).

The spelling of 11787261 in words is "eleven million, seven hundred eighty-seven thousand, two hundred sixty-one".