11788471 has 4 divisors (see below), whose sum is σ = 12195000. Its totient is φ = 11381944.

The previous prime is 11788423. The next prime is 11788477. The reversal of 11788471 is 17488711.

11788471 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.

It is a cyclic number.

It is not a de Polignac number, because 11788471 - 2⁹ = 11787959 is a prime.

It is a super-3 number, since 3×11788471³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11788471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11788477) 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, 203221 + ... + 203278.

It is an arithmetic number, because the mean of its divisors is an integer number (3048750).

Almost surely, 2^11788471 is an apocalyptic number.

11788471 is a deficient number, since it is larger than the sum of its proper divisors (406529).

11788471 is an equidigital number, since it uses as much as digits as its factorization.

11788471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406528.

The product of its digits is 12544, while the sum is 37.

The square root of 11788471 is about 3433.4342865417. The cubic root of 11788471 is about 227.5896422486.

It can be divided in two parts, 117 and 88471, that added together give a palindrome (88588).

The spelling of 11788471 in words is "eleven million, seven hundred eighty-eight thousand, four hundred seventy-one".