11743987 has 8 divisors (see below), whose sum is σ = 11942480. Its totient is φ = 11547360.

The previous prime is 11743973. The next prime is 11743993. The reversal of 11743987 is 78934711.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11743987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11743997) 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, 17437 + ... + 18097.

It is an arithmetic number, because the mean of its divisors is an integer number (1492810).

Almost surely, 2^11743987 is an apocalyptic number.

11743987 is a deficient number, since it is larger than the sum of its proper divisors (198493).

11743987 is a wasteful number, since it uses less digits than its factorization.

11743987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933.

The product of its digits is 42336, while the sum is 40.

The square root of 11743987 is about 3426.9501017669. The cubic root of 11743987 is about 227.3030102532.

The spelling of 11743987 in words is "eleven million, seven hundred forty-three thousand, nine hundred eighty-seven".