11687637 has 8 divisors (see below), whose sum is σ = 16782304. Its totient is φ = 7192368.

The previous prime is 11687629. The next prime is 11687639. The reversal of 11687637 is 73678611.

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

It is not a de Polignac number, because 11687637 - 2³ = 11687629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 299683 = 11687637 / (1 + 1 + 6 + 8 + 7 + 6 + 3 + 7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11687595 and 11687604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11687639) by changing a digit.

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, 149803 + ... + 149880.

It is an arithmetic number, because the mean of its divisors is an integer number (2097788).

Almost surely, 2^11687637 is an apocalyptic number.

It is an amenable number.

11687637 is a deficient number, since it is larger than the sum of its proper divisors (5094667).

11687637 is a wasteful number, since it uses less digits than its factorization.

11687637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299699.

The product of its digits is 42336, while the sum is 39.

The square root of 11687637 is about 3418.7186196000. The cubic root of 11687637 is about 226.9388787941.

The spelling of 11687637 in words is "eleven million, six hundred eighty-seven thousand, six hundred thirty-seven".