11717487 has 8 divisors (see below), whose sum is σ = 17359280. Its totient is φ = 7811640.

The previous prime is 11717483. The next prime is 11717501. The reversal of 11717487 is 78471711.

It is a happy number.

11717487 is a `hidden beast` number, since 1 + 171 + 7 + 487 = 666.

It is not a de Polignac number, because 11717487 - 2² = 11717483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11717483) 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, 216964 + ... + 217017.

It is an arithmetic number, because the mean of its divisors is an integer number (2169910).

Almost surely, 2^11717487 is an apocalyptic number.

11717487 is a deficient number, since it is larger than the sum of its proper divisors (5641793).

11717487 is an equidigital number, since it uses as much as digits as its factorization.

11717487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433990 (or 433984 counting only the distinct ones).

The product of its digits is 10976, while the sum is 36.

The square root of 11717487 is about 3423.0815064792. The cubic root of 11717487 is about 227.1319137280.

The spelling of 11717487 in words is "eleven million, seven hundred seventeen thousand, four hundred eighty-seven".