11687475 has 12 divisors (see below), whose sum is σ = 19323416. Its totient is φ = 6233280.

The previous prime is 11687471. The next prime is 11687491. The reversal of 11687475 is 57478611.

11687475 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 11687475 - 2² = 11687471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11687471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77842 + ... + 77991.

Almost surely, 2^11687475 is an apocalyptic number.

11687475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11687475 is a deficient number, since it is larger than the sum of its proper divisors (7635941).

11687475 is a wasteful number, since it uses less digits than its factorization.

11687475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155846 (or 155841 counting only the distinct ones).

The product of its digits is 47040, while the sum is 39.

The square root of 11687475 is about 3418.6949264303. The cubic root of 11687475 is about 226.9378302711.

The spelling of 11687475 in words is "eleven million, six hundred eighty-seven thousand, four hundred seventy-five".