11687542 has 16 divisors (see below), whose sum is σ = 18742752. Its totient is φ = 5452480.

The previous prime is 11687521. The next prime is 11687563. The reversal of 11687542 is 24578611.

It is an interprime number because it is at equal distance from previous prime (11687521) and next prime (11687563).

It is a junction number, because it is equal to n+sod(n) for n = 11687498 and 11687507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1213 + ... + 4984.

It is an arithmetic number, because the mean of its divisors is an integer number (1171422).

Almost surely, 2^11687542 is an apocalyptic number.

11687542 is a deficient number, since it is larger than the sum of its proper divisors (7055210).

11687542 is a wasteful number, since it uses less digits than its factorization.

11687542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6263.

The product of its digits is 13440, while the sum is 34.

The square root of 11687542 is about 3418.7047254772. The cubic root of 11687542 is about 226.9382639207.

The spelling of 11687542 in words is "eleven million, six hundred eighty-seven thousand, five hundred forty-two".