10789987 has 8 divisors (see below), whose sum is σ = 11730096. Its totient is φ = 9865632.

The previous prime is 10789973. The next prime is 10789993. The reversal of 10789987 is 78998701.

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-10789987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10789987.

It is not an unprimeable number, because it can be changed into a prime (10789937) 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, 2488 + ... + 5269.

It is an arithmetic number, because the mean of its divisors is an integer number (1466262).

Almost surely, 2^10789987 is an apocalyptic number.

10789987 is a deficient number, since it is larger than the sum of its proper divisors (940109).

10789987 is a wasteful number, since it uses less digits than its factorization.

10789987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7877.

The product of its (nonzero) digits is 254016, while the sum is 49.

The square root of 10789987 is about 3284.8115623274. The cubic root of 10789987 is about 220.9735573012.

It can be divided in two parts, 107 and 89987, that multiplied together give a square (9628609 = 3103²).

The spelling of 10789987 in words is "ten million, seven hundred eighty-nine thousand, nine hundred eighty-seven".