10871987 has 8 divisors (see below), whose sum is σ = 12540000. Its totient is φ = 9232704.

The previous prime is 10871983. The next prime is 10872007. The reversal of 10871987 is 78917801.

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

It is a cyclic number.

It is not a de Polignac number, because 10871987 - 2² = 10871983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10871983) 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, 6362 + ... + 7887.

It is an arithmetic number, because the mean of its divisors is an integer number (1567500).

Almost surely, 2^10871987 is an apocalyptic number.

10871987 is a deficient number, since it is larger than the sum of its proper divisors (1668013).

10871987 is a wasteful number, since it uses less digits than its factorization.

10871987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14365.

The product of its (nonzero) digits is 28224, while the sum is 41.

The square root of 10871987 is about 3297.2696280408. The cubic root of 10871987 is about 221.5319182806.

The spelling of 10871987 in words is "ten million, eight hundred seventy-one thousand, nine hundred eighty-seven".