11387636 has 12 divisors (see below), whose sum is σ = 21461412. Its totient is φ = 5255808.

The previous prime is 11387617. The next prime is 11387687. The reversal of 11387636 is 63678311.

It can be written as a sum of positive squares in 2 ways, for example, as 6280036 + 5107600 = 2506^2 + 2260^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11387596 and 11387605.

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 3 ways as a sum of consecutive naturals, for example, 109445 + ... + 109548.

It is an arithmetic number, because the mean of its divisors is an integer number (1788451).

Almost surely, 2^11387636 is an apocalyptic number.

It is an amenable number.

11387636 is a deficient number, since it is larger than the sum of its proper divisors (10073776).

11387636 is a wasteful number, since it uses less digits than its factorization.

11387636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219010 (or 219008 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 11387636 is about 3374.5571561317. The cubic root of 11387636 is about 224.9803176199.

The spelling of 11387636 in words is "eleven million, three hundred eighty-seven thousand, six hundred thirty-six".