43087 has 4 divisors (see below), whose sum is σ = 47016. Its totient is φ = 39160.

The previous prime is 43067. The next prime is 43093. The reversal of 43087 is 78034.

43087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 43087 - 2¹¹ = 41039 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1948 + ... + 1969.

It is an arithmetic number, because the mean of its divisors is an integer number (11754).

2⁴³⁰⁸⁷ is an apocalyptic number.

43087 is a deficient number, since it is larger than the sum of its proper divisors (3929).

43087 is a wasteful number, since it uses less digits than its factorization.

43087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3928.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 43087 is about 207.5740831607. The cubic root of 43087 is about 35.0575922552.

Adding to 43087 its reverse (78034), we get a palindrome (121121).

The spelling of 43087 in words is "forty-three thousand, eighty-seven".