10443987 has 6 divisors (see below), whose sum is σ = 15085772. Its totient is φ = 6962652.

The previous prime is 10443943. The next prime is 10443989. The reversal of 10443987 is 78934401.

It is a happy number.

It is not a de Polignac number, because 10443987 - 2¹¹ = 10441939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10443989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 580213 + ... + 580230.

Almost surely, 2^10443987 is an apocalyptic number.

10443987 is a deficient number, since it is larger than the sum of its proper divisors (4641785).

10443987 is a wasteful number, since it uses less digits than its factorization.

10443987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160449 (or 1160446 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 10443987 is about 3231.7157981481. The cubic root of 10443987 is about 218.5858815803.

The spelling of 10443987 in words is "ten million, four hundred forty-three thousand, nine hundred eighty-seven".